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| 多级机油能够满足几种不同单级机油类型的粘度要求 | |||
| 多级通用机油; 多级油 | |||
| 多级通用润滑油 | |||
| multigrade oil: 5 phrases in 3 subjects |
| Automobiles | 1 |
| Drilling | 1 |
| Oil / petroleum | 3 |
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