英[ɪmpɜ:mjəbɪ\'lɪtɪ]
美[ɪmpɜmjəbɪ\'lɪtɪ]
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。
辞典例句
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.
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