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加 油管 : 77 phrases in 15 subjects |
Automobiles | 25 |
Aviation | 6 |
Chemistry | 1 |
Earth sciences | 1 |
Economy | 2 |
Electric machinery | 1 |
General | 1 |
Mechanics | 1 |
Metallurgy | 2 |
Mining | 2 |
Nautical | 1 |
Navigation | 1 |
Oil / petroleum | 18 |
Refrigeration | 1 |
Technology | 14 |