辅助 操作 : 45 phrases in 14 subjects |
Agriculture | 1 |
Automobiles | 1 |
Aviation | 8 |
Computer numerical control | 1 |
Computers | 1 |
Electronics | 8 |
Metallurgy | 4 |
Navigation | 1 |
Plastics | 1 |
Shipbuilding | 1 |
Space | 4 |
Technology | 10 |
Telecommunications | 2 |
Textile industry | 2 |