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全部话题 - 话题: hydraulic
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f******y
发帖数: 270
1
这个是coverage,还不少。
"Comprehensive stated coverage that includes all the coverage of Vintage,
Classic and Powertrain plus more."
Brake Group:
Master cylinder, power brake cylinder, vacuum assist booster, hydro boost,
disc brake caliper, wheel cylinders, compensating valve, metal brake
hydraulic lines and fittings. The following ABS Components
are covered: Hydraulic control unit, electronic control processor, wheel
speed sensors, hydraulic pump/motor assembly, pressure modulator valve,
isolation dum... 阅读全帖
q*****e
发帖数: 433
2
来自主题: Automobile版 - 换轮胎求教
socket尺寸一定要合适. 以前朋友修车用得不是deep socket尺寸还小一号
最后socket断在里面了... 最后只能拖车
impact gun可有可无, 小车没必要. 需要个hydraulic trolley jack.
2-ton得就可以了. jack stand可以用木头或者砖头代替, 用hydraulic jack
得时候要架在金属支撑得部位, 拉上emergency brake. 还有就是照块别太
软得平地. leg nuts因车而异有得真得锈死了可能又需要lubricant又需要把
hydraulic jack得杆子取下来做breaker bar得延长杠杆.
j*******n
发帖数: 10868
3
来自主题: Automobile版 - 傻八路的几种AWD比较 (ZT)
http://legacygt.com/forums/showthread.php/explanation-continuou
There is a lot of confusion about the differences between the various Subaru
AWD systems:
Continuous (for 5MT)
Active (for 4EAT)
VTD (for 5EAT)
availability or non-availability of Rear LSD
So heres an attempt to explain the differences....
1. Continuous AWD System:
The manual transmission’s all-wheel drive is referred to as a continuous
all-wheel drive system. It uses a center differential located inside the
transmission case that i... 阅读全帖
e**n
发帖数: 5876
4
来自主题: Automobile版 - 下雪地方四驱suv推荐
你上面贴的那个blog里平时90% - 10%前后分配是错误的, 我看到的所有volvo的awd信
息都是95% - 5%前后分配
大家经常说RAV4, CRV是太公四驱, 就是这种所谓的awd, 平时实际上就是FWD, 只有在
前轮打滑的情况下, 才能把扭矩转到后轮. 叫做"slip-and-grip". 和真正的全时四驱,
平时就50-50, 60-40或者40-60扭矩分配的四驱有本质区别.
volvo也是这种slip n grip. 平时就是FWD. RAV4, CRV平时是100/0. RAV4有sport
mode能90/10, volvo平时是95/5. 和RAV4, CRV本质一样.
volvo说了很多torque transfer如何快. 看看CRV怎么说自家torque transfer的如何快:
"To provide a rapid torque transfer response time for seamless 4-wheel drive
operation to the driver, the multi-plate clutch is suppleme... 阅读全帖
a**********a
发帖数: 544
5
来自主题: Automobile版 - ML vs X5?
here is the definition from awdwiki
automatic all wheel drive
This is an "on-demand" all wheel drive system. Under normal driving
conditions, only one axle is powered. When wheel slipping occurs (the
driving driveshaft rotates faster than the driven driveshaft), a multiplate
hydraulic clutch, viscous coupling, or other similar traction control device
locks and engages another axle. Torque gets transferred to another axle. As
soon as difference in front and rear axle speeds is eliminated, the dev... 阅读全帖
B*Z
发帖数: 7062
6
来自主题: Automobile版 - 为什么森林人的AWD比Ford edge的好
主要说的是中央差速器。这个是网上一个文章。附件是现在的subaru中央差速器分类。
There is a lot of confusion about the differences between the various Subaru
AWD systems:
? Continuous (for 5MT)
? Active (for 4EAT)
? VTD (for 5EAT)
? availability or non-availability of Rear LSD
So heres an attempt to explain the differences....
1. Continuous AWD System:
The manual transmission’s all-wheel drive is referred to as a continuous al
l-wheel drive system. It uses a center differential located inside the trans
mission... 阅读全帖
B*Z
发帖数: 7062
7
来自主题: Automobile版 - 4 runner, SR5 vs Trail
why?
It optimally adjusts front and rear stabilizers based on a set of
interconnected hydraulic cylinders. The interconnection is made up of
hydraulic piping and a control cylinder which is located at the frame rail.[
2] KDSS, which is fully mechanical, can disengage the stabilizer bars (the
bars are jointed, allowing movement independent of one another).[2] This
system will not engage during normal driving conditions, when hydraulic
pressure is equal. In off-road conditions, KDSS activates when... 阅读全帖
p********r
发帖数: 28
8
帮朋友贴的。朋友人很好,大家感兴趣的,不妨去试试。下面是朋友的基本情况。
浙大水文水资源研究所这次招聘的主要负责人在国内毕业于清华大学,
后在斯坦福大学学习七年,获得硕士和博士学位。 于2006年回浙大就职。
现为副教授,博士生导师,浙大水利与海洋工程系副系主任,水文水资源
所所长。他诚挚的希望能够与同样在北美学习工作过的人才共事。并且
愿意分享他回国后这几年的工作及生活感受。
Job description:


The Department of Hydraulic Engineering at the Zhejiang University

invites applicants for several positions in hydrology, hydraulics, and

water resources. All positions are tenure-track positions at the
assistant 
professor level. However, for exceptional ca... 阅读全帖
c*******2
发帖数: 235
9
***************************************************************
The Department of Hydraulic Engineering at the Zhejiang University invites
applicants for several positions in hydrology, hydraulics, and water
resources. All positions are tenure-track positions at the assistant
professor level. However, for exceptional cases, more senior positions may
be considered.
Candidates should have a doctoral degree and at least 1 year of postdoctoral
research experience in hydrology, hydraulics, geomorphol... 阅读全帖
c*******2
发帖数: 235
10
****************************************************
The Department of Hydraulic Engineering at the Zhejiang University invites
applicants for several positions in hydrology, hydraulics, and water
resources. All positions are tenure-track positions at the assistant
professor level. However, for exceptional cases, more senior positions may
be considered.
Candidates should have a doctoral degree and at least 1 year of postdoctoral
research experience in hydrology, hydraulics, geomorphology, water
... 阅读全帖
p********r
发帖数: 28
11
来自主题: JobMarket版 - 浙大水文水资源所招聘启事
帮朋友贴的。朋友人很好,大家感兴趣的,不妨去试试。下面是朋友的基本情况。
浙大水文水资源研究所这次招聘的主要负责人在国内毕业于清华大学,
后在斯坦福大学学习七年,获得硕士和博士学位。 于2006年回浙大就职。
现为副教授,博士生导师,浙大水利与海洋工程系副系主任,水文水资源
所所长。他诚挚的希望能够与同样在北美学习工作过的人才共事。并且
愿意分享他回国后这几年的工作及生活感受。
Job description:
The Department of Hydraulic Engineering at the Zhejiang University
invites applicants for several positions in hydrology, hydraulics, and
water resources. All positions are tenure-track positions at the assistant
professor level. However, for exceptional cases, more senior positions
may be c... 阅读全帖
c*******2
发帖数: 235
12
*****************************************************************
The Department of Hydraulic Engineering at the Zhejiang University invites
applicants for several positions in hydrology, hydraulics, and water
resources. All positions are tenure-track positions at the assistant
professor level. However, for exceptional cases, more senior positions may
be considered.
Candidates should have a doctoral degree and at least 1 year of postdoctoral
research experience in hydrology, hydraulics, geomorph... 阅读全帖
p********r
发帖数: 28
13
帮朋友贴的。朋友人很好,大家感兴趣的,不妨去试试。下面是朋友的基本情况。
浙大水文水资源研究所这次招聘的主要负责人在国内毕业于清华大学,
后在斯坦福大学学习七年,获得硕士和博士学位。 于2006年回浙大就职。
现为副教授,博士生导师,浙大水利与海洋工程系副系主任,水文水资源
所所长。他诚挚的希望能够与同样在北美学习工作过的人才共事。并且
愿意分享他回国后这几年的工作及生活感受。
Job posting:



The Department of Hydraulic Engineering at the Zhejiang University 

invites
applicants for several positions in hydrology, hydraulics, and 
water
resources.
All positions are tenure-track positions at the assistant 
professor
level.
However, for exceptional case... 阅读全帖
w***n
发帖数: 150
14
来自主题: Immigration版 - 无标题
From: International Journal of Hydrology Science and Technology
Title: Comparison between support vector machine and nonlinear regression
for predicting saturated hydraulic conductivity
Required by Mar 19, 2018.
Abstract
Saturated hydraulic conductivity (Ks) is playing an important role in
irrigation, and drainage. The aim of the study was to validate Pedotransfer
Functions (PTFs) using non-linear regression (NLR) and support vector
machine (SVM) for estimation Ks. Moreover, selecting the best p... 阅读全帖
s***r
发帖数: 783
15
482
BRAKE SYSTEM
Your vehicle is equipped with dual hydraulic brake systems. If either of the
two hydraulic systems loses normal capability, the remaining system will
still function. However, there will be some loss of overall braking
effectiveness. You may notice increased pedal travel during application,
greater pedal force required to slow or stop, and potential activation of
the “Brake System Warning Light.”
In the event power assist is lost for any reason (i.e., repeated brake
applications ... 阅读全帖
S**r
发帖数: 2478
16
来自主题: SanDiego版 - 周末把机油换了
周末自己把机油换了。弄了满手油,花费也不少。走了不少弯路,也学到一些经验。特分享一下。
以前都是在sears换engine oil (普通)和oil filter,每次35左右(合成油55左右,偶没换过)。在其他地方也用过几次11.9的coupon。有童鞋说这些低价coupon有trick。我没有研究过究竟有啥trick,不过如果大家看看我自己换油的花费(见本文最后),可能也会认同trick一说。
网上看了很多换机油的video,感觉满容易的。并且以前每次在sears换油的时候,都站在旁边学。没吃过猪肉,还没见过猪跑么?大概的步骤无非就是升起汽车,放出旧油,拧下旧oil filter,拧上新oil filter,倒入新油,放下汽车,完毕。比把大象放入冰箱的三个步骤(打开冰箱门,放入大象,关上冰箱门)稍微麻烦一点而已。
实际情况如何呢?
匆忙之中,没有留照片。下次换油的时候补上。
1, 需要的材料(耗材)。
如果你是小白而且不愿意事先上网作一点研究,可以直接跑到kragen或autozone问店小儿。店小二会告诉你需要买些什么材料和工具。
不过为了防止被小二的一些词搞晕 (甚至忽悠),建... 阅读全帖
N*********r
发帖数: 1190
17
来自主题: Fishing版 - 求支招:方向盘锁死了
cable的还是hydraulic的? cable的就自己沿线看看,hydraulic我的天啊,我有一次
曾经从早上10点修到半夜2点,真的,中间没停过。一堆零件散落出来了,搞了好久才
换好磨损的部件,所以,要是hydraulic的,慎行。
c*******2
发帖数: 235
18
***************************************************************
The Department of Hydraulic Engineering at the Zhejiang University invites
applicants for several positions in hydrology, hydraulics, and water
resources. All positions are tenure-track positions at the assistant
professor level. However, for exceptional cases, more senior positions may
be considered.
Candidates should have a doctoral degree and at least 1 year of postdoctoral
research experience in hydrology, hydraulics, geomorphol... 阅读全帖
I*0
发帖数: 4200
19
来自主题: CivilEngineering版 - 干了,aecom 买来了urs
以前请aecom的hydraulic部门做过hydraulic model。后来aecom将这个hydraulic部门
卖给了alden。当时看到那个invoice非常吃惊,项目经理bill给我们才40多块钱/小时
。尼玛,private sector的薪水真低

★ 发自iPhone App: ChineseWeb 8.2.2
p********r
发帖数: 28
20
来自主题: Environmental版 - 浙大水利与海洋工程系若干职位招聘
帮朋友贴的。朋友人很好,大家感兴趣的,不妨去试试。下面是朋友的基本情况。
浙大水文水资源研究所这次招聘的主要负责人在国内毕业于清华大学,
后在斯坦福大学学习七年,获得硕士和博士学位。 于2006年回浙大就职。
现为副教授,博士生导师,浙大水利与海洋工程系副系主任,水文水资源
所所长。他诚挚的希望能够与同样在北美学习工作过的人才共事。并且
愿意分享他回国后这几年的工作及生活感受。
Job description:
The Department of Hydraulic Engineering at the Zhejiang University
invites applicants for several positions in hydrology, hydraulics, and
water resources. All positions are tenure-track positions at the assistant
professor level. However, for exceptional cases, more senior positions
may be c... 阅读全帖
c*******y
发帖数: 60
21
来自主题: Environmental版 - 环境硕士求职 请教前辈经验
今年底毕业,将发2个paper。 目前研究偏生物,与biofiltration有关。简历已经投了
n多了,只有两个回应,其中一个还是个process engineer, 跟环境不沾边(电面没什
么问题,但他们最后还是要了一个跟他们目前一个客户以前合作过的人)。大公司职位
看到很多,很多也是entry level的,我也是基本每周都投,大小公司都有,但都是石
沉大海。
个人觉得,经验少于一年,硕士,无人推荐,找工作完全就是碰运气。老板多年不跟工
业界联系了,帮不了什么忙。有个同学,硕士,不是环境的,找的是系里其他老师的推
荐,马上就拿到了good year的offer。
本人还是想进工业界,因为不太愿意走学术。贴下本人主要经历,请教环境方面的前辈
:我的简历还有哪些需要改进的地方? 目前求职方向有哪些需要注意的?
硕士gpa3.9,国内本科给水排水工程,gpa3.5左右。

Environmental Engineer
An entry-level Environmental Engineer with excellent understanding in water/
wastewa... 阅读全帖
c*******y
发帖数: 60
22
来自主题: Environmental版 - 环境硕士求职 请教前辈经验
今年底毕业,将发2个paper。 目前研究偏生物,与biofiltration有关。简历已经投了
n多了,只有两个回应,其中一个还是个process engineer, 跟环境不沾边(电面没什
么问题,但他们最后还是要了一个跟他们目前一个客户以前合作过的人)。大公司职位
看到很多,很多也是entry level的,我也是基本每周都投,大小公司都有,但都是石
沉大海。
个人觉得,经验少于一年,硕士,无人推荐,找工作完全就是碰运气。老板多年不跟工
业界联系了,帮不了什么忙。有个同学,硕士,不是环境的,找的是系里其他老师的推
荐,马上就拿到了good year的offer。
本人还是想进工业界,因为不太愿意走学术。贴下本人主要经历,请教环境方面的前辈
:我的简历还有哪些需要改进的地方? 目前求职方向有哪些需要注意的?
硕士gpa3.9,国内本科给水排水工程,gpa3.5左右。

Environmental Engineer
An entry-level Environmental Engineer with excellent understanding in water/
wastewa... 阅读全帖
l**********l
发帖数: 4468
23
来自主题: _Auto_Fans版 - 手刹怎么调
http://forum.miata.net/vb/showthread.php?t=312683
恩??手刹不都是刹caliper的么。cable连上去的啊。你理解错了我估计。我不是说我
的手刹是hydraulic brake line连到caliper。 但是不管hydraulic还有cable都是刹
caliper啊。
以后等漂移熟练一点了把手刹也改成甩尾车那种hydraulic的哈哈。
w*******y
发帖数: 60932
24
Performance Bikes has their 2010 Access XCL 9.9 29er mountain bike on sale
to Team Performance members for $1799 - 25% with coupon code 747 + $30
shipping = $1379.99. The Team Performance membership is $29.99 - 25% coupon
= $22.49 but with that you get an additional 10% off your next purchase,
just remember to cancel before your year is up or the annual membership will
auto-renew. The 25% is actually good on anything but this bike is a
particularly good deal with the installed components. Even i... 阅读全帖
i****d
发帖数: 255
25
来自主题: Military版 - 方舟子这次批钱伟长可露怯了
世上不仅一个人叫爱因斯坦。不要老惦记别人出丑。想想55年去世的老爱有可能拿59年
的research awards吗?
Hans Albert Einstein, Hydraulic and Sanitary Engineering: Berkeley
1904-1973
Professor of Hydraulic Engineering, Emeritus
c**i
发帖数: 6973
26
来自主题: Military版 - DF-21D + J-20 + Chinese Learning Fracking
(1) Eric Talmadge, AP Interview: Admiral says China's carrier killer missile
won't deter US Navy. Associated Press, Feb 15, 2011.
http://hosted.ap.org/dynamic/stories/A/AS_US_
CHINA_CARRIER_KILLER?SITE=OKPON&SECTION=HOME&TEMPLATE=DEFAULT
(2) Dave Majumdar, J-20 a ‘wake-up call,’ former intel chief says. Air
Force Times, Feb 15, 2011.
http://www.airforcetimes.com/news/2011/02
/air-force-deptula-calls-j20-a-wake-up-call-021311w/
Quote:
"But he [Loren Thompson of Lexington Institute] said the J-20 ... 阅读全帖
b*********d
发帖数: 3539
27
原理:往地下灌大量富含各种有机溶剂、防腐剂、抗腐蚀成分的水,吸收天然气,然后再抽上来提纯。问题是抽上来的大约只有灌进去的一半,剩下的...全进地下水。hydraulic fraction技术已经在六个州全面铺开,最近几年发展神速。
污染:
一半废水进入地下水;地上浓缩的废水敞口蒸发;大量天然气和其他有毒气体直接泄进大气。
自来水泛黄、发黑、冒泡
地下水能点着火。溪流冒泡,插个管子能当炉子使
动物掉毛,鸟类、兔子、鱼类死亡
附近住户哮喘、癌变、周身疼痛、神经症状诸如丧失嗅觉和部分味觉,身体不能移动
官方态度:1. 水质测量没发现问题。2. 能源危机背景下,要有所取舍,顾全大局,退一步进两步。
审查:cheney在任上给这项技术立法大开绿灯,使其对任何环保法案免疫,同时不需要公开使用的化学成分。EPA更是连审查都管不着。直到2010年6月hydraulic fracturing使用的化学成分才公开,其中相当多的都是致癌物,绝育变异,不一而足。
最妙的是,绝大部分p民在认识到这项技术的危险性之前,都被开采公司拿钱买断,签了保密/免责协定。谁公开说这事儿,谁就法庭上见。
米帝这项工程利国利民,... 阅读全帖
b**********n
发帖数: 2812
28
Japan’s Strict Building Codes Saved Lives
By JAMES GLANZ and NORIMITSU ONISHI
Hidden inside the skeletons of high-rise towers, extra steel bracing, giant
rubber pads and embedded hydraulic shock absorbers make modern Japanese
buildings among the sturdiest in the world during a major earthquake. And
all along the Japanese coast, tsunami warning signs, towering seawalls and
well-marked escape routes offer some protection from walls of water.
These precautions, along with earthquake and tsunami dri... 阅读全帖
k*****r
发帖数: 21039
29
来自主题: Military版 - 米国的技术和工业彻底崩盘了
日航777液压控制系统问题,紧急返回机场:
A Japan Airlines Boeing 777 bound for San Francisco returned to Tokyo early
Tuesday after a warning flashed in the cockpit saying the jet's hydraulic
fluid level was low.
The plane carrying 236 passengers and 13 crew had departed around midnight
and returned about four hours later to Tokyo's Haneda airport.
Passengers boarded another plane that departed for San Francisco and arrived
there safely early Tuesday local time, a company spokesman said.
Mechanics found a leak in t... 阅读全帖
z*****4
发帖数: 835
30
来自主题: Military版 - 竟然有这么多被打下来的飞机
搜了下wiki,发现除了毛子以外,PLA、NATO还有许多大国小国都有打飞机的历史。
http://en.wikipedia.org/wiki/List_of_airliner_shootdown_inciden
1940s[edit]
Kaleva OH-ALL[edit]
Main article: Kaleva (airplane)
Junkers Ju 52-3/mge "Kaleva" OH-ALL was a civilian transport and passenger
plane operated by the Finnish carrier Aero O/Y, shot down by two Soviet
Ilyushin DB-3 bombers on June 14, 1940, while en route from Tallinn, Estonia
, to Helsinki, Finland.[1] This occurred during the Interim Peace between
Finland and the Soviet Union, t... 阅读全帖
R*R
发帖数: 2661
31
男护士就是见识短浅。
一般气田,和页岩气开采方式很不一样。你google 一下 Hydraulic Fracturing
https://pangea.stanford.edu/news/mark-zoback-hydraulic-fracturing
b********n
发帖数: 38600
32
Waste Water from Oil Fracking Injected into Clean Aquifers
http://www.nbcbayarea.com/investigations/Waste-Water-from-Oil-F
"They lie, cheat, and steal without rest."
State officials allowed oil and gas companies to pump nearly three billion
gallons of waste water into underground aquifers that could have been used
for drinking water or irrigation.
Those aquifers are supposed to be off-limits to that kind of activity,
protected by the EPA.
“It’s inexcusable,” said Hollin Kretzmann, at the Center ... 阅读全帖
G*F
发帖数: 404
33
来自主题: Military版 - 又一个华裔科技人员被起诉
If you were to go to this website: http://www.fbi.gov/cincinnati/press-releases/2014/noaa-national-weather-service-employee-indicted-for-allegedly-downloading-restricted-government-files you would find the following headline in the FBI press release…
NOAA National Weather Service Employee Indicted for Allegedly Downloading
Restricted Government Files
The NOAA/National Weather Service (NOAA/NWS) employee is Xiafen “Sherry”
Chen. She is a naturalized U.S. Citizen from Beijing, China; she holds a
M... 阅读全帖
h**g
发帖数: 94
34
来自主题: Military版 - 平安夜里话石油 (转载)
【 以下文字转载自 Stock 讨论区 】
发信人: Cibora (City of Gold), 信区: Stock
标 题: 平安夜里话石油
发信站: BBS 未名空间站 (Wed Dec 24 15:31:34 2014, 美东)
前些日子,看到板上好多大侠讨论了石油和油价的问题。今天事情少,俺也随便说两句
自己的理解。
很多人讨论石油,都是从美国vs俄罗斯、沙特vs美国、传统油气产业vs页岩油气产业这
样的大视角来说。我本人见识狭小,这些大局的东西俺都看不懂,俺就从俺懂的石油公
司的角度随便说说。
之前网上一个常见的观点是,这一把油价雪崩,美国各大石油公司都会受伤惨重。我对
此比较保留。在美国财阀政治的大背景下,石油公司都有强大的政治力量,如果不取得
石油财团的谅解,油价能那么莫名其妙在没有任何big event的情况下,突然就从100+
的高位崩到60以下,并且做出长期走低的姿态?我认为,大石油公司在这场油价雪崩中
必然是有收益的,因此他们才愿意支持并维持低油价一段较长的时间。问题在于大石油
公司在这场油价雪崩中,到底会有什么样的收益。
有这么一个故事,说两个人在山里走,突... 阅读全帖

发帖数: 1
35
【 以下文字转载自 Faculty 讨论区 】
发信人: beefnoodles (一碗牛肉面), 信区: Faculty
标 题: 2006年清华校友中的新faculty 50人[不完全版]
发信站: BBS 未名空间站 (Tue Nov 28 00:23:16 2006)
南加州大学:2人
马清运
南加州大学建筑学院院长(10月5日正式宣布)
dean of the USC School of Architecture and holder of the Della and Harry
MacDonald Dean's Chair in Architecture
1988年毕业于清华大学建筑系,Upenn建筑系硕士
http://arch.usc.edu//page_3082.jsp
Liang Chen
Assistant Professor of Biological Sciences
University of Southern California
http://www.usc.edu/schools/college/faculty/faculty1012741.html... 阅读全帖
t******t
发帖数: 15246
36
China is advancing its space capabilities by developing staged combustion,
an engine technology that is likely to offer greater performance for the
Long March 6 and 7, two of a family of launchers that the country will field
around the middle of the decade.
The smaller of the two, the Long March 6, may be the first to go into
service, beating the flagship third member of the family, the Long March 5
heavy launcher.
A new 18-metric-ton-thrust engine “is a high-altitude liquid oxygen and
kerosene ... 阅读全帖
b*********d
发帖数: 3539
37
【 以下文字转载自 Military 讨论区 】
发信人: bittergourd (苦瓜), 信区: Military
标 题: 来看米帝的断子绝孙工程,水变油的神奇科技
发信站: BBS 未名空间站 (Fri Feb 18 22:32:57 2011, 美东)
原理:往地下灌大量富含各种有机溶剂、防腐剂、抗腐蚀成分的水,吸收天然气,然后再抽上来提纯。问题是抽上来的大约只有灌进去的一半,剩下的...全进地下水。hydraulic fraction技术已经在六个州全面铺开,最近几年发展神速。
污染:
一半废水进入地下水;地上浓缩的废水敞口蒸发;大量天然气和其他有毒气体直接泄进大气。
自来水泛黄、发黑、冒泡
地下水能点着火。溪流冒泡,插个管子能当炉子使
动物掉毛,鸟类、兔子、鱼类死亡
附近住户哮喘、癌变、周身疼痛、神经症状诸如丧失嗅觉和部分味觉,身体不能移动
官方态度:1. 水质测量没发现问题。2. 能源危机背景下,要有所取舍,顾全大局,退一步进两步。
审查:cheney在任上给这项技术立法大开绿灯,使其对任何环保法案免疫,同时不需要公开使用的化学成分。EPA更是连审查都管不着。直到2... 阅读全帖
r****9
发帖数: 4961
38
写这篇文章的人基本上对于hydraulic frac是一知半解的。

后再抽上来提纯。问
题是抽上来的大约只有灌进去的一半,剩下的...全进地下水。hydraulic fraction技
术已经在六个州全
面铺开,最近几年发展神速。
进大气。
l****z
发帖数: 29846
39
EPA: Fracking not causing major harm to drinking water
By Timothy Cama - 06/04/15 12:07 PM EDT
Hydraulic fracturing has not caused any major harm to drinking water
supplies, the Environmental Protection Agency concluded Thursday.
In what the EPA is calling the most comprehensive examination of existing
data and science on the impact the controversial oil and natural gas
drilling technique has on drinking water, it largely debunked concerns about
extensive contamination of well water or other sou... 阅读全帖
s******s
发帖数: 6
40

~~~15
I can't agree more.
The accumulator is something to suspect on fully hydraulic and partly
electronic automatics. Most hydraulic clutch/band circuits have an accumulator,
which is a spring-loaded piston assembly in a chamber, to prevent shift shock.
If the chamber is filled with sludge or the piston spring is broken, it could
be responsible.
Of course, a sludge-filled or varnished accumulator chamber could indicate
a varnished valve body under the oil pan. S
w*****e
发帖数: 19
41
Haha, I know the answer.
For the automatic transmission, the crankshaft and the wheels are connected,
in the transmission, through hydraulic links. At the high speed, however, to
save fuel, the connection is switched to mechanic links. This machenic link
will be released back to hydraulic link when the vehicle slows down.
Sometimes, the release control doesn't work. The engine shuts down as a
result. Exactly the same feelings you mentioned.
Now, comes the million $$$ answer. To fix it, very easy
t*a
发帖数: 18880
42
ok, 一个朋友的老626 出现这个问题,包括面板"brake灯"时亮时不亮。加过刹车液后
症状消失。
也许这个灯也读low brake fluid sensor 信息?
http://www.aa1car.com/library/warning_lights.htm
BRAKE WARNING LIGHT
More bad news -- but not always. The Brake Warning light may be one for one
of two reasons: you forgot to release the parking brake, or your brake
system has a potentially serious hydraulic problem that may make your
vehicle unsafe to drive.
First, check the parking brake lever, handle or pedal. Make sure it is fully
released. If that is not t... 阅读全帖
t*****0
发帖数: 264
43
☆─────────────────────────────────────☆
covenante (SB) 于 h 提到:
外出办事,在100多mile的地方,不幸后避震器的下端连接处断了,导致顶在轮胎内壁
上,差点把轮胎磨暴了,本来打算拖车到就近的车铺,一打听连工带料要250刀,这个
数字不好,不爽。仔细看了看,发现简单固定下避震器下端,让它不要碰到轮胎和地面
,还是可以开的,于是小心的开回来。决定自己换,从网上定了对KYB的,70多刀,装
的过程还算容易,呵呵。
几天后,发电机又挂了,网上买个二手的,40刀。这个装起来有些难度,要拆不少东西
。而且,买来的发电机外形尺寸上与旧的稍有差异(车型一样,年份不同),装不上。把
它们都拆开,把旧的里面的电刷,交直流转换器和整流器三样东西都换了,肉眼看上去
像是电刷不行了,磨得太短了已经。装上,好了,运气不错,呵呵。发电机接电池负极
的那个螺丝是安装时拧断的防盗设计,拆起来很抓狂。这个坏掉的发电机还是原装的之
前没换过,91年的产品,质量过硬。
这车没有转速表,开起来不太习惯,买个aftermarket的装上,感觉不错。
☆───... 阅读全帖
m****s
发帖数: 8992
44
来自主题: Automobile版 - 刹车油能不能自己加
Braking fluid
is not oil. it's a hydraulic fluid.
It's in a closed system. and should not vary much under normal use.
Supposedly, if your braking fluid level is low. it very well reflects other
problems with the system.
I would not be able to tell what the problem is. but i would not just ignore
a braking system anomaly.
That's why, for regular driving public, it is NEVER recommended to "add to"
hydraulic braking fluid yourself.
Bad Bad Bad idea.
k****g
发帖数: 88
45
来自主题: Automobile版 - 求助: 2008yaris 换机油问题
收到版上达人们的鼓舞,准备自己给2008 yaris 换机油。不过遇到一些问题,希望达
人们给一点指点。
引擎盖的螺丝。达人们指导一下,是不是应该拧开这颗螺丝(黑色箭头所指)? 我试了
socket wrench, 但是力矩不够,怎么都拧不开。可能要重新买一个。达人们有什么好
的wrench 推荐?
车底盘太低,没有太多空间腾挪。准备把车抬起来。买了一个hydraulic jack, 但是不
知道应该撑在怎么位置。user manual 上的图根本没有什么帮助。看起来有两个地方可
以撑车子:1)从bumper 往车肚子大概36寸的地方有一个横跨车两侧的钢壳子。2)引
擎下面有一大块铝壳子,如箭头所指。不知道这两个地方哪个可以撑车子?不过那个钢
壳子所在地点太深,hydraulic jack根本够不到。达人们有什么建议?
m***o
发帖数: 55
46
来自主题: Automobile版 - Honda 换 T-Belt 求 建 议
04 Honda Pilot 90K. Timing Belt Due.
地 雷 说 : T-Belt + Water Pump + Seals $700 plus tax
但 是 我 想 找 LOCAL MECHANIC (Only Charge for Labor), 这 样可 做 如 下 ITEM:
1. T-Belt + Water Pump + Seals
2. Hydraulic Tensioner (is it necessary?)
3. 2 drive belt.
4. Side engine mount (need to remove anyway)
不 算 Tensioner 他 要 $300。 OEM Parts $260. 可 能 我 还 要 买 个 Crankcase
Pulley Holder ($20). 怕 他 万 一 没 有 而 用 其 他 方 法 下 PULLEY BOLT。
看 了 一 遍 SERVICE MANUAL,没 发 现 特 别 的 地 方 FOR PILOT,除 了 一 些
关 于 High Interference Engin... 阅读全帖
g********d
发帖数: 19244
47
☆─────────────────────────────────────☆
idee (The Unknown Singleton) 于 (Thu Jan 30 17:55:56 2014, 美东) 提到:
AT是靠齿轮,容易理解。以前scooter之类小engine
用橡胶皮带CVT还比较容易理解一点,马力小,橡胶不太滑。
汽车CVT就靠两个光滑如镜的斜面夹着一个光滑如镜的
金属链,而且不是夹死,还能随着宽度随时调整上下位置,
这东西怎么能挤住的同时还能灵活上下走还能高效率呢?我
主观想象一下觉得很容易打滑,时间长松了岂不是效率更会
降低很多?网上随便找找没找到关于打滑的讨论
☆─────────────────────────────────────☆
james824 (马扎罗) 于 (Thu Jan 30 18:00:54 2014, 美东) 提到:
铁链上有凸起,然后CVT上面是一条一条的凹槽,看起来可能就像空气滤清器那样吧,
这样铁链上的凸起可以嵌入凹槽,同时还可以移动。
猜的。
☆──────────────────────────────────... 阅读全帖
f****t
发帖数: 15913
48
以下摘子wikipedia,可变timing可不是本田发明的。
*****************************************************
Automotive
The desirability of being able to vary the valve opening duration to match
an engine’s rotational speed first became apparent in the 1920s when
maximum allowable RPM limits were generally starting to rise. Until about
this time an engine’s idle RPM and its operating RPM were very similar,
meaning that there was little need for variable valve duration. It was in
the 1920s that the first patents for va... 阅读全帖
r********a
发帖数: 691
49
来自主题: Automobile版 - BMX X5 和 保时捷卡宴
宝马新一代全部换electronic steering wheel了。hydraulic 都没了。2015 x1还是
hydraulic.
B*Z
发帖数: 7062
50
来自主题: Automobile版 - CRV, RDX 和 Pilot的AWD
经常有人问,今天试着回答一下。说错了,请指正。都是现在版本。
1. CRV
大名叫做Real Time AWD with Intelligent Control System。这里是官网介绍
http://www.loyaltysite.ca/HondaCRVimmersion/EN/AWD.html
The new Real Time AWD still uses a multi-plate clutch, similar to the clutch
es used in Honda automatic transmissions, to connect the driveshaft to the r
ear differential. But in place of the twin hydraulic pumps and ball cam mech
anism used previously, the system now uses an electric motor driving a singl
e hydraulic pump, which operates the clu... 阅读全帖
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