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端 套管 : 54 phrases in 13 subjects |
Architecture | 1 |
Automobiles | 1 |
Drilling | 2 |
Electric machinery | 1 |
Electronics | 10 |
General | 2 |
Hydroelectric power stations | 1 |
Metallurgy | 4 |
Oil / petroleum | 4 |
Plastics | 2 |
Rail transport | 4 |
Technology | 21 |
Telecommunications | 1 |