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关注：1
2013-05-23 12:21
求翻译：严格控制钻杆接头的密封性，确保泥浆能全部从孔底返回。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
严格控制钻杆接头的密封性，确保泥浆能全部从孔底返回。
问题补充： |
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2013-05-23 12:21:38
Strict control of the drill pipe joint sealing, to ensure that all the mud from the bottom of the hole can be returned.
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2013-05-23 12:23:18
Strict control of the drill pipe joints, ensure that mud can seal all return from the bottom of the hole.
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2013-05-23 12:24:58
The strict control drilling rod coupling leak-proof quality, guarantees the mud to be able all to return from the hole bottom.
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2013-05-23 12:26:38
Strict control on Rotary shouldered connections for tightness, ensure the return of mud from the bottom hole.
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2013-05-23 12:28:18
Strict control of the drill pipe joint sealing, to ensure that all the mud from the bottom of the hole can be returned.
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