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baiyuefei版主 (文学泰斗)
风雪
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【答案】应助回帖
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感谢参与,应助指数 +1 alert: 金币+5, ★有帮助 2016-05-03 15:54:36 alert(lazy锦溪代发): 金币+5, 协助结帖,感谢应助! 2016-05-07 15:44:16 lazy锦溪: LS-EPI+1, 感谢应助! 2016-05-07 15:44:29
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2楼2016-05-03 12:49:38
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(Finite element method and bed test to torque analysis of kelly cock valve in gas drilling) WN KY)
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