不透气性 meaning in English
air impermeability
barrier property
gas impermeability
gas proofness
gas tightness
imporosity
tightness
Examples
- Impermeable sintered metal materials and hardmetals . determination of density
不透气性烧结金属材料和硬质合金.密度的测量
air impermeability
barrier property
gas impermeability
gas proofness
gas tightness
imporosity
tightness