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全部话题 - 话题: seam
1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)
s******e
发帖数: 493
1
来自主题: Java版 - 有人用seam吗
never use seam. hard to comment.
But what I heard about seam is that seam frame source code was written in a
very pretty way, you can use it as some blueprint to lean how to code well
in java (Do not know if it is true since I have't started to read "Seam In
Action" and look at its' source code yet)
t*******e
发帖数: 684
2
来自主题: Java版 - 有人用seam吗
差不多,各有千秋。spring对transaction的支持更好,但seam的event/handler很牛,
spring web flow也超了不少seam page flow的东西。我本身更喜欢spring多些,因为
stateless framework比较容易处理,seam web tier是stateful的,bean property
outjection有点傻。
t***e
发帖数: 3601
3
来自主题: Java版 - 有人用seam吗
I use seam everyday. seam need a lot of learning. For web programming,you
need to understand seam jsf life cycle really well to understand event
sequences. I don't have much spring experiences though.
q*********u
发帖数: 280
4
引入了一个 blog的例子,
应该是把所有的jar都包括了,但是搞不懂,为什么数据库的建表,一点没有找到有生
成的代码。
自己手动建表或者直接hibernate写几句把表建起来,应该没问题,感觉就是怪。
像这种好多年的例子,应该不会让用户自己看源代码,再根据逻辑来推论建表吧?
有.sql的文件,都是insert语句。没有create语句,
前几天看见有版上说seam自带例子的帖子。
另外我有这么些个异常,居然google搜不到类似错误,搞笑了。
org.jboss.seam.InstantiationException: Could not instantiate Seam component:
indexerService
Caused by: java.lang.RuntimeException: exception invoking: getTransaction
Caused by: javax.naming.NamingException: Cannot create resource instance
看上去像是很常规的异常,关键字很清晰,但是还是不太好查,请各位提示一下。
k****u
发帖数: 133
5
来自主题: Java版 - 有人用seam吗
从找工作的角度来说的话,spring还是主流,可以去monster什么的用spring和seam作
为关键词分别搜索一下。我记得前一阵搜索的时候,好像是几百比十几,spring的工作
远多于seam。当然,从学习积累的角度看,多知道点东西,也不是坏事。
l******e
发帖数: 1875
6
看由房主填写的disclousure上对于2个问题有如下回答
1:“Has there been any settling, slippage, or sliding of the property or
its improvements? ” 回答的Yes
注明有: "cracking in a seam of wall due to settling"
2:提示有“defects on driveways,且注明: “driveway slightly uneven due to
settling”
这两个问题大么,直觉第一个问题有点吓人?
y*****p
发帖数: 733
7
来自主题: Living版 - Granite seam
single vanity granite countertop has a very obvious seam. Is this a defect?
h********e
发帖数: 1130
8
来自主题: Living版 - Granite seam
is the seam straight line, clear cut? or a natual crack?

defect?
y*****p
发帖数: 733
9
来自主题: Living版 - Granite seam
小浴室,一个vanity bowl sink。
红线是seam
f****i
发帖数: 19
10
来自主题: Texas版 - Granite countertop seam glue and seal
Anyone could suggest a good granite countertop installer?
I need to glue and seal a straight seam between two granite countertop
pieces.
Thanks!
I*******o
发帖数: 53
11
来自主题: Java版 - 有人用seam吗
看到有介绍说spring代表今天,seam代表明天。
b******y
发帖数: 9224
12
来自主题: Java版 - 有人用seam吗
I don't know seam but I still like Spring framework. Also, as someone above
mentioned, job aspect is very important. It is like although I don't like
php, but I envy the many small apps developed by php. Not a lot of java open
source web apps compared to php.
j*********r
发帖数: 654
13
duct tape救急可以,但是不牢固,而且会留下粘糊糊的胶渍,既不美观,也不实用。
我用的是带背胶的seam tape, 如下:
http://www.rockywoods.com/Hardware-Zippers/Seam-Sealers-Seam-Ta
用法:
剪成所需要的长度,边角修成弧形。因为这是黑色的,可以贴在外面(有的seam tape
颜色浅,我贴在衣物的背面),用熨斗熨烫贴上,注意熨斗的温度不能过高,以免烫坏
尼龙(260C熔点),温度也不能太低,否则念不上。这样补很牢靠,我的攀冰用的裤子
有7、8个口子,都是这么补的,穿了5年也没事。这种tape补其它的户外衣物都可以。
原来Rockywoods 还有卖一种stretchy seam tape, 现在不知道还有没有,不妨问问他
们。
Rockywoods这个网站挺靠谱的,还有其它的seam tape.
http://www.rockywoods.com/Hardware-Zippers/Seam-Sealers-Seam-Ta
r****m
发帖数: 1264
14
来自主题: Baseball版 - 今天谈谈几种球路
一个讲4-seam fastball and 2-seam fastball的
发信人: JKL@Palmarama (Noresize) 看板: Baseball
标 题: Re: 【转贴】螺旋球与伸卡球 -- by fjs
发信站: 台大计中椰林风情站 (Wed Feb 9 20:33:20 2000)
==> poppet (Perfect-Desperado) 提到:
> talking about this...do everybody ever read the
Comics
> it talks about "4-seam" ball and 2-seam ball
嗯,耶鲁的教授把这个问题解释清楚花了叁章,要简单的说明真不
容易。
基本上快速球投出的时候,旋转的方向由叁垒方向看过来为逆时钟
方向。two-seam fastball与four-seam fastball的差异在握球时,
在旋转的圆周上绕过两道缝线或是四道缝线的差异。如果拿颗棒球来
看,这两种握球的角度在球体上约相差九十度。
从流体力学课本中对球体的讨论我们可
l******9
发帖数: 58
15
来自主题: Classified版 - 转Oakley女式小号滑雪服两件
转Oakley女式小号滑雪服两件
都是全新的,吊牌的receipt都在。本人身高160cm,体重100 lb,买了小号的(S)觉
得大,又买了一件XS,还是觉得偏大了,不得不忍痛割爱了。请诚心购买的mm认真考虑
,不要错过良机,请发站内信或着通过 a*********[email protected]跟我联系,非诚勿扰,
谢谢!
GB Insulated Jacket
Size: S, color Red, $99 Was $280.00
100% polyester insulated performance jacket
Gretchen Bleiler Signature Series
80/20 duck down insulation
15K mm waterproofing with 20K g/m2/24hrs breathability and fully tape-welded
seams
Fixed hood with magnetic hold-down system
Underarm vents with zips
Wrist gaiters (inner cuffs wi... 阅读全帖
l******9
发帖数: 58
16
来自主题: Classified版 - 转Oakley女式小号滑雪服两件
转Oakley女式小号滑雪服两件
都是全新的,吊牌的receipt都在。本人身高160cm,体重100 lb,买了小号的(S)觉
得大,又买了一件XS,还是觉得偏大了,不得不忍痛割爱了。请诚心购买的mm认真考虑
,不要错过良机,请通过 a*********[email protected]跟我联系,非诚勿扰,
谢谢!
GB Insulated Jacket
Size: S, color Red, $99 Was $280.00
100% polyester insulated performance jacket
Gretchen Bleiler Signature Series
80/20 duck down insulation
15K mm waterproofing with 20K g/m2/24hrs breathability and fully tape-welded
seams
Fixed hood with magnetic hold-down system
Underarm vents with zips
Wrist gaiters (inner cuffs with thu... 阅读全帖
l******9
发帖数: 58
17
来自主题: Classified版 - 转Oakley女式小号滑雪服两件
转Oakley女式小号滑雪服两件
都是全新的,吊牌的receipt都在。本人身高160cm,体重105 lb,买了小号的(S)觉
得大,又买了一件XS,还是觉得偏大了,不得不忍痛割爱了。请诚心购买的mm认真考虑
,不要错过良机,请通过 a*********[email protected]跟我联系,非诚勿扰,
谢谢!
GB Insulated Jacket
Size: S, color Red, $99 Was $280.00
100% polyester insulated performance jacket
Gretchen Bleiler Signature Series
80/20 duck down insulation
15K mm waterproofing with 20K g/m2/24hrs breathability and fully tape-welded
seams
Fixed hood with magnetic hold-down system
Underarm vents with zips
Wrist gaiters (inner cuffs with thu... 阅读全帖
l******9
发帖数: 58
18
来自主题: FleaMarket版 - 转Oakley女式小号滑雪服两件
转Oakley女式小号滑雪服两件
都是全新的,吊牌的receipt都在。本人身高160cm,体重100 lb,买了小号的(S)觉
得大,又买了一件XS,还是觉得偏大了,不得不忍痛割爱了。请诚心购买的mm认真考虑
,不要错过良机,请发站内信或着通过 a*********[email protected]跟我联系,非诚勿扰,
谢谢!
GB Insulated Jacket
Size: S, color Red, $99 Was $280.00
100% polyester insulated performance jacket
Gretchen Bleiler Signature Series
80/20 duck down insulation
15K mm waterproofing with 20K g/m2/24hrs breathability and fully tape-welded
seams
Fixed hood with magnetic hold-down system
Underarm vents with zips
Wrist gaiters (inner cuffs wi... 阅读全帖
l******9
发帖数: 58
19
转Oakley女式小号滑雪服两件
都是全新的,吊牌的receipt都在。本人身高160cm,体重105 lb,买了小号的(S)觉
得大,又买了一件XS,还是觉得偏大了,不得不忍痛割爱了。请诚心购买的mm认真考虑
,不要错过良机,请通过 a*********[email protected]跟我联系,非诚勿扰,
谢谢!
GB Insulated Jacket
Size: S, color Red, $99 Was $280.00
100% polyester insulated performance jacket
Gretchen Bleiler Signature Series
80/20 duck down insulation
15K mm waterproofing with 20K g/m2/24hrs breathability and fully tape-welded
seams
Fixed hood with magnetic hold-down system
Underarm vents with zips
Wrist gaiters (inner cuffs with thu... 阅读全帖
g*****9
发帖数: 4125
20
来自主题: Living版 - 换roof的问题
Metal shake or shingles (depending what brand you buy) can cost as much as
red ceder or hardwood shingles.
Metal roofing made from galvanised steel in sheets of strips are much
cheaper, they have many patterns and color choices avail to mimic other roof
material. They also install very faster.
I prefer mechanically seamed metal with concealed fasteners contains sealant
in seams than flat-seam metal with soldered seams.
l*******n
发帖数: 905
21
来自主题: Running版 - 求鉴定,这是不是molded bra
Champion Bra 通常是很薄的cups(subtle contouring)。下面是几款MovingComfort
Bra with Moderate-
contoured seam-free cups or Maximum-contoured seam-free cups。通常Moderate-
contoured足够了。Maximum-contoured有点过分。
Moderate-contoured seam-free cups:
VIXEN A/B
http://www.movingcomfort.com/Vixen-A/B/300290,default,pd.html
JUSTRIGHT RACER
http://www.movingcomfort.com/JustRight-Racer/300574,default,pd.
Maximum-contoured seam-free cups:
http://www.movingcomfort.com/Urban-X-Over-A/B/300576,default,pd
http://www.movingcomfort.... 阅读全帖
l******9
发帖数: 58
22
转Oakley女式小号滑雪服两件
都是全新的,吊牌的receipt都在。本人身高160cm,体重100 lb,买了小号的(S)觉
得大,又买了一件XS,还是觉得偏大了,不得不忍痛割爱了。请诚心购买的mm认真考虑
,不要错过良机,请发站内信或着通过 a*********[email protected] 跟我联系,非诚勿扰
,谢谢!不好意思,不知道怎么发照片,想考虑的mm可以联系我,我可以发照片给你,
谢谢!
GB Insulated Jacket
Size: S, color Red, $99 Was $280.00
100% polyester insulated performance jacket
Gretchen Bleiler Signature Series
80/20 duck down insulation
15K mm waterproofing with 20K g/m2/24hrs breathability and fully tape-welded
seams
Fixed hood with magnetic hold-down system
Underarm vents... 阅读全帖
l******9
发帖数: 58
23
转Oakley女式小号滑雪服两件
都是全新的,吊牌的receipt都在。本人身高160cm,体重100 lb,买了小号的(S)觉
得大,又买了一件XS,还是觉得偏大了,不得不忍痛割爱了。请诚心购买的mm认真考虑
,不要错过良机,请通过 a*********[email protected]跟我联系,非诚勿扰,
谢谢!
GB Insulated Jacket
Size: S, color Red, $99 Was $280.00
100% polyester insulated performance jacket
Gretchen Bleiler Signature Series
80/20 duck down insulation
15K mm waterproofing with 20K g/m2/24hrs breathability and fully tape-welded
seams
Fixed hood with magnetic hold-down system
Underarm vents with zips
Wrist gaiters (inner cuffs with thu... 阅读全帖
l******9
发帖数: 58
24
转Oakley女式小号滑雪服两件
都是全新的,吊牌的receipt都在。本人身高160cm,体重105 lb,买了小号的(S)觉
得大,又买了一件XS,还是觉得偏大了,不得不忍痛割爱了。请诚心购买的mm认真考虑
,不要错过良机,请通过 a*********[email protected]跟我联系,非诚勿扰,
谢谢!
GB Insulated Jacket
Size: S, color Red, $99 Was $280.00
100% polyester insulated performance jacket
Gretchen Bleiler Signature Series
80/20 duck down insulation
15K mm waterproofing with 20K g/m2/24hrs breathability and fully tape-welded
seams
Fixed hood with magnetic hold-down system
Underarm vents with zips
Wrist gaiters (inner cuffs with thu... 阅读全帖
l******9
发帖数: 58
25
转Oakley女式小号滑雪服两件
都是全新的,吊牌的receipt都在。本人身高160cm,体重105 lb,买了小号的(S)觉
得大,又买了一件XS,还是觉得偏大了,不得不忍痛割爱了。请诚心购买的mm认真考虑
,不要错过良机,价钱可以商量,请通过 a*********[email protected]跟我联系,非诚勿扰,
谢谢!
GB Insulated Jacket
Size: S, color Red, $99 Was $280.00
100% polyester insulated performance jacket
Gretchen Bleiler Signature Series
80/20 duck down insulation
15K mm waterproofing with 20K g/m2/24hrs breathability and fully tape-welded
seams
Fixed hood with magnetic hold-down system
Underarm vents with zips
Wrist gaiters (inner cuffs w... 阅读全帖
m*********g
发帖数: 36
26
银行的房子,房检后屋顶,加热器,空调全都有问题。具体结果贴在下面,AGENT一个
劲说是个好DEAL,比正常卖的大概便宜不到三万的样子。可我们觉得这要修好象都是大
件,哪个牛人给指点一下?
Roof:active leaks and evidence of past leaks observed during
the inspection are reported on as part of this inspection.Active leaking was
noted at the upper front right corner of gutter system at seams and along
seam on the upper left side gutter located at about the center of the home.
It is likely that there are other leaking seams but could not be detected at
this time due to no active rain occurrin... 阅读全帖
s*****h
发帖数: 44903
27
☆─────────────────────────────────────☆
Trojan07 (Tro) 于 (Thu Oct 3 09:17:13 2013, 美东) 提到:
为什么好多球员可以退役之后打mlb? 两个运动区别蛮大吧
★ 发自iPhone App: ChineseWeb 7.8
☆─────────────────────────────────────☆
sisomso (羊羊) 于 (Thu Oct 3 10:04:08 2013, 美东) 提到:
很多人中学大学都是脚篮棒三修吧,也有人拿到两边的offer选了脚球

☆─────────────────────────────────────☆
crazygun (神经枪) 于 (Thu Oct 3 10:29:10 2013, 美东) 提到:
从钱的角度来看,应该是篮球最赚吧
☆─────────────────────────────────────☆
sisomso (羊羊) 于 (Thu Oct 3 10:33:52 2013, 美东) 提到:
身高限制... 阅读全帖
b*s
发帖数: 82482
28
来自主题: LeisureTime版 - 【征文】Neal Stephenson和《Reamde》
摘抄一段那段黑丝袜和sex的议论,很长,微色,慎入:
Note to myself: let’s see "Letters to Penthouse" print this!
I don’t suppose that graduate students of either gender are exactly sought
out by sexual connoisseurs for their great fucking skills. We think about it
too much. Everything has to be verbalized. A person who believes that
fucking is a sexual discourse is simply never going to be any good in the
sack.
I have a thing about stockings. They have to be sheer black stockings,
preferably with seams up the back. When... 阅读全帖
b*s
发帖数: 82482
29
来自主题: LeisureTime版 - 【征文】Neal Stephenson和《Reamde》
摘抄一段那段黑丝袜和sex的议论,很长,微色,慎入:
Note to myself: let’s see "Letters to Penthouse" print this!
I don’t suppose that graduate students of either gender are exactly sought
out by sexual connoisseurs for their great fucking skills. We think about it
too much. Everything has to be verbalized. A person who believes that
fucking is a sexual discourse is simply never going to be any good in the
sack.
I have a thing about stockings. They have to be sheer black stockings,
preferably with seams up the back. When... 阅读全帖
l*y
发帖数: 21010
30
由美国著名的作家Neal Stephenson撰写
I don’t suppose that graduate students of either gender are exactly sought
out by sexual connoisseurs for their great fucking skills. We think about it
too much. Everything has to be verbalized. A person who believes that
fucking is a sexual discourse is simply never going to be any good in the
sack.
I have a thing about stockings. They have to be sheer black stockings,
preferably with seams up the back. When I was thirteen years old I actually
shoplifted some black pan... 阅读全帖
t*******e
发帖数: 684
31
Struts2(webork2), Spring MVC, JSF(Seam)有很多相似的地方。wicket有点背道而驰,
从declarative programming又退回到了programmatic development. Seam和JSF的设计
者都不太喜欢wicket。wicket的web pages是更干净了,但代价是更多的Java coding,
也不POJO. 顺便说一下,Swing开发本身就是个很不爽的活.
自己的经验感觉JSF的API最POJO和elegant,也最接近ASP.net.Strut2基本POJO,借鉴了
JSF的很多ideas,但不是component-oriented web framework,有些新的idea如RESTful
URLs很不错。Spring MVC API设计的较差,有些要developers遵守固定的naming
conventions, url patterns, 感觉比较乱,自由度低。目前我感觉最好的还是
Facelets, JSF, 和Spring Web Flow的组合,或者就是Facelets, JSF和Seam.
t*******e
发帖数: 684
32
来自主题: Java版 - spring transaction的问题
Internal method calls bypass AOP proxy in Spring as well as Seam. The
keyword "this" is tough to handle in the proxy object.
There is a workaround, using Spring/Seam API to locate a proxied "this" bean, and invoking the internal method on the proxied "this".
In Spring, BeanFactory.getBean("this bean");
In Seam, Component.getInstance("this bean");
w*******y
发帖数: 60932
33
来自主题: _DealGroup版 - 【$】Kelty Buttress 4 person Tent $119 FS
Link:
http://iway.org/9571791
The Kelty Buttress 4 sleeps 4. It has 1 door and one large vestibule (15.5
sq.ft) for storage of extra gear. The sturdy DAC frame is simple and quick
to assemble. You are protected from the weather by the full coverage
polyester fly which completely protects the tent and its occupants (that
would be you) from even the most driving rain storms. The tough durable
floor is Kelty's famous Arc Edge floor which raises the seams up and inverts
them to the inside of the ten... 阅读全帖

发帖数: 1
34
来自主题: Military2版 - 响尾蛇空空导弹AIM-9家族
AIM-9A:
原始编号XAAM-N-7的响尾蛇原型导弹于1953年9月试射成功,这一个次型后来更改编号
为GAR-8,后又改为AIM-9A,又被称作响尾蛇1型。
9A生产数量大约3500枚,服役时间很短,1957年开始就陆续由性能更好的AIM-9B取代。
AIM-9B:
AIM-9B最初的编号是AAM-N-7,第一次在台海冲突首创导弹击落敌机纪录时,中华民国
空军的F-86军刀机使用时编号是GAR-8,最后的通用编号是AIM-9B。
AIM-9B也是美国海空军进入越战时的主力空对空导弹之一。
创下首次用导弹击落飞机纪录的飞行员,是当时中华民国空军驻新竹机场第十一大队第
四十四中队,中队长李叔元中校。
AIM-9C:
AIM-9C是响尾蛇导弹系列里面最特别的一个次型。它的导引方式并非红外线导引,而是
半主动雷达导引。由于响尾蛇导弹只能由目标的后方锁定攻击,使用上的限制比较大,
如果改用半主动雷达导引,配备AIM-9C的战斗机就可以采取对头攻击。
AIM-9D:
有着最新的导向装置及飞控系统,以硫化铅光电池寻标器(Pbs)搭配液氮(Nitrogen
)冷却系统,俯视角可达40度,光网频... 阅读全帖
a****g
发帖数: 3027
35
来自主题: Automobile版 - 老车机油消耗,问题在哪里?
oil pan下面的油渍可能不是 oil pan seal不严的问题?
valve seam是什么?是head gasket valve seam嘛?早上起来排气管的烟我去仔细看看。
PCV只换过一次,大概十五六万迈的时候。还需要再换嘛?

可能是这些地方漏出来的。
出来,基本就是这个问题。修这个要拆head,很麻烦,除了烧机油也没什么其他问题,
一般都不需要修了。
严重的烧机油。你也可以换比较粘稠的机油比如40号的德国车用的那种机油,会减少烧
油的量。
a**r
发帖数: 661
36
来自主题: Living版 - 2014年01月包子奖励
1月水枪排名 根据规则每ID 50伪币
http://weiming.info/water-guns/living/2014/1/3
11 MKZhou 246 43.9% (38) 182 (8) 0.74 (7)
12 canhelp2007 245 38.5% (43) 125 (15) 0.51 (34)
13 JSIS 241 53.7% (36) 158 (11) 0.66 (11)
mxf 241 69.1% (29) 143 (14) 0.59 (21)
15 seamful 220 97.8% (5) 109 (17) 0.50 (36)
seamless 220 98.7% (4) 100 (20) 0.45 (43)
17 thymeee 212 51.7% (37) 95 (24) 0.45 (43)
18 GERMs 202 57.5% (35) 147 (13) ... 阅读全帖
i***e
发帖数: 9429
37
来自主题: Living版 - 周末open house
发信人: deliver (自动发信系统), 信区:
标 题: imore 封 seamful 在 Living 版
发信站: BBS 未名空间站自动发信系统 (Sat May 7 23:50:25 2016)
【此篇文章是由自动发信系统所张贴】
由于 seamful 在 Living 版的 攻击版友 行为,
被暂时取消在本版的发文权力 14 天。
版主:imore
Sat May 7 23:50:24 2016
k**g
发帖数: 1558
38
来自主题: Stock版 - 死捂不是最好的方法
比较一下MDY和SPY的holding,我可以看出下面几点。还不是太全面,希望大家补充。
https://www.spdrs.com/product/fund.seam?ticker=MDY
https://www.spdrs.com/product/fund.seam?ticker=spy
1. MDY overweight dividend比较少的financial
2. MDY underweight dividend比较多的consumer staples,overweight dividend比较
少的consumer discretionary
3. 除去Apple,MDY 和SPY对Tech的holding基本一样。我觉得MDY更多一些小的成长性
的Tech firm,没有MSFT,ORCL,Amazon,Google etc
4. MDY的healthcare稍微少一点。
其他忽略不计。
MDY的dividend yield 1.05%, S&P要有1.95%。如果10-year bond yield继续涨,S&P
受的影响更大。
过去1个季度, 1,3,5,10年, ... 阅读全帖
k******h
发帖数: 573
39
use sand grout when seams are greater than 1/8" inch , use non sand grout
when seams are equal or less than 1/8"
F******7
发帖数: 4765
40
说来是刀都架到脖子上了,只要我犹豫,立马手起刀落,你们就看不到我灌水了。
在我还是像你们这么大的时候,听说furnace两年就要洗一次头,于是就去翻黄页
。那时候
天还很蓝,还没有Google, MS的股票接近两百,不过骗子、杀人犯和现在一样多。
从A开始打。AAA听着太便宜,就往下打。刚打到Action Heating.
说是trucking就$79。就是说来了不做就走就得这个价。但做了就免了。
行啊。
来一车,车上还有他们的logo。下来一二十多岁小白。看了看我的炉子,自信地说
,这种型
号的根据我的经验,容易出现的问题是裂缝。如果有了裂缝就会漏气,而且按规定我们
也不可以
做,只能换。换就不是这个价了。
我让他去摸摸看有没有裂缝。
他去摸一下。还真有。
我说,咱不修了,你回吧。
他回到车里,拿出个夹子让我签字。我不签。又朝我要trucking费,我说没有,我
觉得不太
可能会有这个问题,要再问一下别的家。
他气急败坏,指着我说,you'll be hearing from us in the court.
过了一会儿,他老板来电话问怎么回事。我说,他还没试就说可能要换。我根本不
... 阅读全帖
g****r
发帖数: 88
41
八种武器(一)让我们谈谈物理
写完序后,有位兄弟对我吼了一声:你压真罗嗦。
嗯,《渴望》那么点屁事都能拍个40多集,俺多折腾个几K有嘛大不了的。
给点耐心。棒球也是种需要耐心的运动。
看官:好了好了,算你狠,现在你可以讲第一种武器了吧?
guitar:别急,我先讲点物理。
看官:@#!$%^&*&!@!#!!#!#!#@!@#!@#!$#$#%!
关公说:练拳不练功,好似一场空。孔子说:知其然,也要知其所以然。
这文圣和武圣殊途同归,都点出了真理所在。
在历史长河流经千年之后,伟大领袖Bud Selig同志又说:棒球要以物理知识为
一个中心,紧抓投球和击球两个基本点。
其实投球的物理知识很简单。
当球离开Pitcher的手(包括手指和手掌)时,它是一个有着强大的初动能
和受到三种力的球体:
1,地心引力:引力的大小和球的重量相同。它会将球垂直向下拉。
2,空气的Drag力或者说是空气阻力。这会降低球向前推进的速度。这个力的大小
取决于好几个因素,比如球的表面光滑程度(这也是4-seam fast ball和
2-seam fast ball的关键区别所在)
3,Magnus Force
g****r
发帖数: 88
42
来自主题: Baseball版 - 八种武器(二)快球/Fastball
八种武器(二)快球/Fastball
还记得《小李飞刀》里的阿飞么?他没有剑招,出剑的秘诀就在于--快。
小李飞刀也在于快,快得连上官金虹都没办法躲过。
傅红雪也在于快,看见他刀光的人都已经不在人世了。。。。。
可见,快确实威力无比。棒球里Pitcher们的第一种武器就是快球。
快球有多快呢?90麦/小时以上。等一下,我拿个计算器。
一麦是1.6公里。一小时是3600秒。所以90麦/小时相当于40米/秒。
从投手丘的最高点到本垒板,距离是18.44米。(没错吧?)
那么,如果你是个击球手,快球从Pitchers出手到你面前,只需要0.46秒。
0.46秒是什么概念?
大概就是快速地眨一下眼的功夫。真是电光火闪一般。
所以,千万不要嘲笑那些被快球三振出局的击球手们。
因为在MLB里,面对那些魔鬼般的Pitcher们扔过来的子弹般的快球,
要击中一次实在是件很了不起的事。
这也是为啥Barry Bonds强调的眼和手的协调性之重要了。
快球作为棒球里历史最悠久的球路,在无数能人志士手里发展出了很多很多种变化。
最常见的是两种:4-seam fastball和2-seam fastball。
G******f
发帖数: 16223
43
来自主题: Baseball版 - nick green真是全才
and he got a 4-seam fastball, 2-seam fastball, slider and moderately filthy
CUTTER!! lol~
t********t
发帖数: 5415
44
来自主题: Baseball版 - 谁能科普一下国民队的新秀
4-seam的movement并不是最重要的指标吧?当然有movement更好。我觉得他以后生存的
两大武器会是mid-high 90的2-seam和backdoor curve。这两个都是BT的movement...说
到mechanic他球出手之后确实有点僵硬。不知道为啥我脑子里突然冒出paul byrd这个
名字...
m*r
发帖数: 37612
45
现在只能知道braking ball, 虽然我一直认为那个是curve ball
什么4 seam, 2 seam, change up, splitter, 完全就是不明白呀
t********y
发帖数: 86
46
这个4 SEAM 2 SEAM倒是可以在网上查到,
就像MESHWORK说的, 没玩过, 就难懂.
q**u
发帖数: 12289
47
看电视转播的时候判断球的类型算是相对容易的,毕竟视角接近投手。判断标准基本就
是球走的曲线和球速。譬如说,一个右手投手投出去的球,又直又快(4-seam
fastball),略往右下沉同时也挺快(2-seam fastball),略往左下拐速度也挺快(
cutter),拐得多点儿速度稍慢点儿(slider),等等等等。。。
h******v
发帖数: 1826
48
Good point. 为了知己知彼,google了:
1. Miller isn't in the rotation for a simple reason: his four-seam
fastball backed up late in the season, and wasn't the same pitch that made
him so overpowering for much of the regular season. And if Miller doesn't
have a potent four-seam fastball, he's vulnerable.
2. The Cardinals have downplayed this, but the organization has concerns
over arm fatigue. The team didn't want to push Miller, who worked a career-
high 173 innings this season. Given Miller's age... 阅读全帖
w****b
发帖数: 623
49
来自主题: Baseball版 - To walk or not to walk
Well, I had the same thought. I asked S to throw a 2 seam off the plate. S
had good 2 seam with movement and up to this point, he hadn't shown it yet.
But maybe I should have called time and communicated this explicitly instead
of relying on signs. Or maybe I had too high expectation on S -- when he
caught, I let him to call his own game so I thought he would understand the
next pitch cannot possibly be a strike, or anything close to it. S later
claimed he did not see the 'off the plate' part of... 阅读全帖
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