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齿轮扇形: 59 phrases in 14 subjects |
Agriculture | 1 |
Automobiles | 14 |
Business | 1 |
Compressors | 1 |
Computers | 1 |
Construction | 3 |
Drilling | 1 |
General | 1 |
Mechanic engineering | 1 |
Metallurgy | 2 |
Nautical | 1 |
Oil / petroleum | 3 |
Space | 2 |
Technology | 27 |