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| 活塞油; 活塞润滑油 | |||
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piston oil : 30 phrases in 7 subjects |
| Agriculture | 1 |
| Automobiles | 17 |
| Compressors | 1 |
| Computer numerical control | 2 |
| Electronics | 1 |
| Shipbuilding | 3 |
| Technology | 5 |
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