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| 推料活塞; 加压活塞 | |||
| 施压活塞; 压力活塞 | |||
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pressure piston : 32 phrases in 8 subjects |
| Automobiles | 4 |
| Aviation | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Plastics | 2 |
| Refrigeration | 1 |
| Steel production | 2 |
| Technology | 19 |
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