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| 机油喷嘴口; 机油喷射射束 | |||
| 喷油射流 | |||
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oil jet : 20 phrases in 5 subjects |
| Automobiles | 8 |
| Chemistry | 1 |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
| Technology | 7 |
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