| |||
暖气管 | |||
气道 | |||
通气道; 煤气通道; 烟道 | |||
煤气管道 |
gas flue : 170 phrases in 14 subjects |
Agriculture | 1 |
Automobiles | 8 |
Aviation | 1 |
Chemistry | 1 |
Construction | 1 |
Ecology | 20 |
Electronics | 4 |
Environment | 2 |
General | 2 |
Metallurgy | 38 |
Nautical | 5 |
Oil / petroleum | 11 |
Oil processing plants | 1 |
Technology | 75 |