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定位 销 : 109 phrases in 21 subjects |
Architecture | 1 |
Automobiles | 14 |
Aviation | 1 |
Chemistry | 1 |
Compressors | 3 |
Drilling | 11 |
Ecology | 1 |
Electronics | 2 |
General | 1 |
Hydroelectric power stations | 2 |
Metallurgy | 13 |
Oil / petroleum | 2 |
Plastics | 6 |
Polymers | 1 |
Project management | 1 |
Racing and motorsport | 1 |
Rail transport | 3 |
Shipbuilding | 1 |
Space | 3 |
Technology | 37 |
Textile industry | 4 |