缓冲 垫 : 44 phrases in 15 subjects |
Architecture | 1 |
Automobiles | 12 |
Drilling | 3 |
Electronics | 2 |
Footwear | 1 |
General | 1 |
Information technology | 1 |
Metallurgy | 2 |
Oil / petroleum | 1 |
Plastics | 3 |
Rail transport | 1 |
Refrigeration | 1 |
Space | 2 |
Technology | 12 |
Wind Energy | 1 |