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拨 开关 : 20 phrases in 13 subjects |
Agriculture | 1 |
Architecture | 1 |
Aviation | 1 |
Data processing | 1 |
Electric machinery | 1 |
Electronics | 1 |
Lighting other than cinema | 1 |
Metallurgy | 1 |
Oil / petroleum | 1 |
Plastics | 1 |
Project management | 1 |
Technology | 7 |
Telecommunications | 2 |