llcbzyq - 2011/5/25 9:45:00
钢筋试验,有一项力学性能不合格,"取双倍数量的试件"复检,这一说法对吗?出自哪个标准或规范?DÖÂ
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winnerxz - 2011/5/26 7:20:00
国标DÖÂ
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wxj289 - 2012/3/6 13:43:00
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qingtrian567 - 2013/4/2 15:46:00
悲剧呀,金币不够用了DÖÂ
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be_careful - 2013/4/8 13:53:00
:default2:和你一起学习DÖÂ
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