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| 浮箍; 带循环阀的套管接箍 | |||
| 带回压阀的套管接箍 | |||
| English thesaurus | |||
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| float (fluent) | |||
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float collar : 18 phrases in 4 subjects |
| Drilling | 7 |
| Mechanics | 1 |
| Oil / petroleum | 9 |
| Technology | 1 |
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