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inclusion of air | |||
air bubble | |||
air filled cavity |
空气泡: 51 phrases in 13 subjects |
Agriculture | 1 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 2 |
General | 2 |
Mechanic engineering | 1 |
Metallurgy | 3 |
Nautical | 4 |
Oil / petroleum | 13 |
Plastics | 3 |
Polymers | 2 |
Shipbuilding | 1 |
Space | 2 |
Technology | 16 |