impermeability例句
Air-entraining agent increases
impermeability of hybrid fiber concrete.
引气剂有助于提高混杂纤维混凝土的抗渗性。
Foam has a robust and independent foam connection, water absorption in less than 25 %.
impermeability.
发泡有强韧而独立的发泡连接, 吸水率在25%以内. 具有防潮、抗渗性能.