drainage blanket中文,drainage blanket的意思,drainage blanket翻译及用法 2025-09-07 00:35 浏览次数 11 drainage blanket英[ˈdreinidʒ ˈblæŋkit]美[ˈdrenɪdʒ ˈblæŋkɪt]疏水层,排水层;排水砂层