美女胸被狂揉扒开吃奶的网站o_亚洲日韩av中文无码专区_东京热激情无码专区_久久HEZYO久综合亚洲色_欧美成人高清视频_国产精品乡下勾搭老头_欧美一级v片在线播放_成人午夜国产视频_男女猛烈无遮挡免费动态图_亚洲一区国产精品视频

늾|W(wng) > I(y)ӢZ|HQ(mo) > λ֎͎æ棩

λ֎͎æ - oD

tengchuqi --- 2011-05-19 14:45:39

1

һӋ㷽ЂС(x)(ji)̎

Equivalent round wire diameter (inch) is equal to the area multiplied by 4 

divided by Pi (3.14159) and raised to the ½ power.  

g@ˣ

ЧAֱӢ磩e4¦У3.14159and raised to the ½ power

 

Xú

wjf5301107 --- 2011-05-19 15:35:52

2

@Ҳܲ³İ̖h1/2η˼

tengchuqi --- 2011-05-20 08:37:33

3

?????power? xܽ
--- 2011-05-20 08:44:44

4

1@Ӌǂ(sh)

--- 2011-05-31 12:30:51

5

W(xu)(x)

Jasen --- 2011-06-24 09:39:39

6

Ǻǣ@Ǹ(j)R2/4eӋ㹫ʽƵġֱR
-- Y(ji) --