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degree of aeration | |||
gas permeability | |||
air permeability; venting quality | |||
gas transmission | |||
air porosity | |||
unfilled porosity | |||
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porosity |
透 气 度 : 25 phrases in 9 subjects |
Architecture | 2 |
Aviation | 1 |
Desert science | 2 |
General | 1 |
Metallurgy | 4 |
Oil / petroleum | 2 |
Shipbuilding | 2 |
Technology | 10 |
Wind Energy | 1 |