air impermeability

• 不透气性

air impermeability的用法和样例：

例句

1. The air flows through the slatted floor and it is perfectly cool even in the tropical heat.
   木质地板的透气性极佳，即使在闷热的热带地区，房间里也十分凉快。
2. Dormancy for hard seeds is caused by impermeability to water and gas and mechanical constraint of the seed coat.
   硬实种子种皮透水透气性差和对胚生长的机械限制，引起种子休眠。