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gas control
met. 气体控制; 煤气调节
railw. 瓦斯治理
gas control: 79 phrases in 15 subjects
Agriculture1
Automobiles6
Aviation4
Chemistry1
Ecology5
Electronics10
Explosives and Explosive Ordnance Disposal1
Mechanics2
Metallurgy13
Nautical2
Oil / petroleum1
Oil processing plants1
Refrigeration3
Space12
Technology17