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主管 | |||
母管 | |||
总管 | |||
干管; 总引水管; 总管 (气、水等); 主管 (指供气供水管); 主茎 | |||
主管道 |
main pipe: 53 phrases in 10 subjects |
Automobiles | 1 |
Electric machinery | 4 |
General | 1 |
Hydroelectric power stations | 1 |
Metallurgy | 1 |
Nautical | 2 |
Oil processing plants | 1 |
Rail transport | 4 |
Shipbuilding | 2 |
Technology | 36 |