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[求助]
谁帮我下下这篇文章Bending Vibration and Whirling Motion of Drill Collars
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Vandiver J K, James W N, Shyu R J. Case Studies of the Bending Vibration and Whirling Motion of Drill Collars. SPE Drilling Engineering, 1990(12):282~290 谁能帮我下载下,我的邮箱jimi87@126.com,本人感激不尽! |

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感谢参与,应助指数 +1
jimi87: 金币+1, ★★★★★最佳答案, 很好,谢谢 2013-02-23 11:17:44
感谢参与,应助指数 +1
jimi87: 金币+1, ★★★★★最佳答案, 很好,谢谢 2013-02-23 11:17:44
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