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lubricant film |
润滑 油 油膜 : 35 phrases in 13 subjects |
Agriculture | 1 |
Automobiles | 3 |
Aviation | 1 |
Compressors | 2 |
Drilling | 1 |
Electric machinery | 3 |
Electronics | 1 |
Metallurgy | 5 |
Oil / petroleum | 3 |
Rail transport | 1 |
Shipbuilding | 2 |
Space | 3 |
Technology | 9 |