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循环管 : 157 phrases in 25 subjects |
Automobiles | 5 |
Chemistry | 6 |
Compressors | 1 |
Drilling | 6 |
Ecology | 3 |
Electric machinery | 1 |
Electronics | 8 |
Engineering geology | 2 |
General | 3 |
Hydroelectric power stations | 2 |
Management | 3 |
Metallurgy | 20 |
Mining | 2 |
Nautical | 3 |
Nuclear and fusion power | 1 |
Nursing | 1 |
Oil / petroleum | 13 |
Oil processing plants | 1 |
Plastics | 1 |
Quality control and standards | 1 |
Refrigeration | 6 |
Solar power | 1 |
Sports | 1 |
Technology | 65 |
Textile industry | 1 |