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| 保油能力; 润滑油保持能力; 保持润滑机油保持，保油能力 (ability) | |||
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oil-retaining : 12 phrases in 5 subjects |
| Automobiles | 3 |
| Electric machinery | 2 |
| Metallurgy | 1 |
| Rail transport | 2 |
| Technology | 4 |
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