层 压 板 : 240 phrases in 21 subjects |
Architecture | 7 |
Automobiles | 2 |
Aviation | 8 |
Business | 1 |
Chemistry | 11 |
Economy | 1 |
Electric machinery | 21 |
Electronics | 5 |
Isolation | 1 |
Metallurgy | 6 |
Oil / petroleum | 1 |
Packaging | 1 |
Plastics | 36 |
Polymers | 47 |
Rail transport | 2 |
Shipbuilding | 2 |
Space | 8 |
Technology | 75 |
Telecommunications | 3 |
Wind Energy | 1 |
Wood processing | 1 |