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组合 式活塞
| 环
| 组合式活塞 | |
| compr. | built-up piston |
| 环 | |
| chem. | cyclo- |
| hydroel.st. | ring; loop |
| manag. | collar |
| mech. | ring |
| met. | kink; thimble; yoke |
| oil | cycle |
| |||
| built-up piston | |||
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组合 式活塞 : 5 phrases in 2 subjects |
| Automobiles | 4 |
| Shipbuilding | 1 |
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