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| 螺旋联接器 | |||
| 螺旋连接器; 螺旋联轴节 | |||
| 螺旋联结器; 螺纹配合; 螺纹连接器; 螺纹接口; 螺纹套管接头 | |||
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screw coupling : 19 phrases in 4 subjects |
| Drilling | 2 |
| Metallurgy | 2 |
| Oil / petroleum | 2 |
| Technology | 13 |
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