零 件 图 : 51 phrases in 15 subjects |
Automobiles | 2 |
Aviation | 20 |
Business | 3 |
Commerce | 4 |
Compressors | 2 |
Computers | 1 |
Drilling | 1 |
Earth sciences | 1 |
Electronics | 1 |
General | 1 |
International trade | 1 |
Management | 3 |
Mechanic engineering | 1 |
Space | 1 |
Technology | 9 |