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double | |||
doubled | |||
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double joint; double-jointing pipe | |||
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couplet | |||
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couplet |
双根 : 26 phrases in 11 subjects |
Agriculture | 1 |
Aviation | 1 |
China | 1 |
Commerce | 1 |
Drilling | 5 |
Economy | 3 |
Electronics | 1 |
General | 5 |
Oil / petroleum | 6 |
Technology | 1 |
Water resources | 1 |