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sourbing
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caocao4735(½ð±Ò+1):лл½»Á÷ 2010-09-16 18:04:27
zdcamel(½ð±Ò+1): 2010-09-17 11:35:11
caocao4735(½ð±Ò+1):лл½»Á÷ 2010-09-16 18:04:27
zdcamel(½ð±Ò+1): 2010-09-17 11:35:11
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KSI=ǧ°õ/ƽ·½Ó¢³ß 1ǧ°õ£½0.45KG£½0.45*9.8*1000=4410N 1Ó¢³ß£½25.4mm 1KSI=4410/(25.4*25.4)=6.84N/ƽ·½ºÁÃ×=6.84MPa [ Last edited by sourbing on 2010-9-16 at 17:26 ] |
3Â¥2010-09-16 17:24:50
chenzhezju
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¡ï
zdcamel(½ð±Ò+1): 2010-09-16 17:14:25
caocao4735(½ð±Ò+1):лл½»Á÷ 2010-09-16 18:04:19
zdcamel(½ð±Ò+1): 2010-09-16 17:14:25
caocao4735(½ð±Ò+1):лл½»Á÷ 2010-09-16 18:04:19
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2Â¥2010-09-16 16:52:57
340285829
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- ×¢²á: 2010-04-29
4Â¥2010-09-17 13:11:54














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