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金属管 |
metal pipe : 41 phrases in 13 subjects |
Bridge construction | 3 |
Business | 1 |
Construction | 1 |
General | 1 |
Hydroelectric power stations | 1 |
Mining | 1 |
Oil / petroleum | 1 |
Rail transport | 1 |
Refrigeration | 2 |
Shipbuilding | 1 |
Solar power | 1 |
Space | 3 |
Technology | 24 |