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| 矿物油 | |||
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material oil : 10 phrases in 8 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Ecology | 2 |
| Economy | 1 |
| Electric machinery | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Oil / petroleum | 1 |
| Technology | 2 |
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