| |||
expansion of air | |||
expansion of gases | |||
gas amplification | |||
gas expansion | |||
air expansion |
气体膨胀 : 21 phrases in 9 subjects |
Automobiles | 1 |
Aviation | 1 |
Engineering geology | 1 |
Explosives and Explosive Ordnance Disposal | 4 |
Metallurgy | 1 |
Mining | 2 |
Oil / petroleum | 4 |
Refrigeration | 2 |
Technology | 5 |