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| 71. | Adjustable elbow--Assembly |
| GB/T3752.1-1983卡套式组合直角管接头 |
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| 72. | Technical code for assembly steel formworks |
| 组合钢模板技术规范 |
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| 73. | rotary buildup assembly |
| 旋转造斜钻具组合 |
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| 74. | Plain washer for assembly |
| GB/T9074.24-1988组合件用平垫圈 |
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| 75. | kick-off assembly |
| 造斜钻具组合；启动装置 |
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| 76. | fuel dispensing pump assembly |
| 燃料分配泵调节组合件 |
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| 77. | roller assembly suspension structure |
| 辊子组合的悬挂结构 |
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| 78. | semipacked bottom-hole assembly |
| 半封隔井底钻具组合 |
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| 79. | unit assembly drawing |
| 分总图|部分组合图|部件装配图 |
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| 80. | fully stabilized rotary assembly |
| 全稳定的旋转钻具组合 |
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