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关注：1
2013-05-23 12:21
求翻译：提出了选择合理的螺纹形式、螺纹材料、螺纹连接方式以及螺纹表面处理方式和螺纹脂等提高钻杆螺纹强度和可靠性的方式。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
提出了选择合理的螺纹形式、螺纹材料、螺纹连接方式以及螺纹表面处理方式和螺纹脂等提高钻杆螺纹强度和可靠性的方式。
问题补充： |
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2013-05-23 12:21:38
Made a reasonable choice of thread forms, materials, thread, threaded connections and thread and thread compound surface treatment methods such as drill pipe thread strength and to improve the reliability of methods.
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2013-05-23 12:23:18
A reasonable choice of thread forms, threaded materials, thread connection methods as well as threaded surface treatment modalities and thread resin increase such as drill pipe thread strength and reliability.
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2013-05-23 12:24:58
Proposed the choice reasonable thread form, the thread material, the screw joint way as well as the thread surface treatment way and the thread fat and so on enhance the drill rod thread intensity and the reliable way.
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2013-05-23 12:26:38
Made a reasonable form of thread, thread, threaded connections and threaded surface treatment of materials and thread compounds for improving strength and reliability of drill pipe threads.
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2013-05-23 12:28:18
Made a reasonable form of thread, thread, threaded connections and threaded surface treatment of materials and thread compounds for improving strength and reliability of drill pipe threads.
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