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冲 洗 管 : 87 phrases in 16 subjects |
Agriculture | 3 |
Automobiles | 2 |
Aviation | 1 |
Construction | 1 |
Dentistry | 1 |
Drilling | 2 |
Earth sciences | 1 |
Ecology | 2 |
Electronics | 2 |
Metallurgy | 3 |
Nautical | 1 |
Oil / petroleum | 8 |
Otorhinolaryngology | 1 |
Shipbuilding | 12 |
Surgery | 1 |
Technology | 46 |