基本解释疏水層,排水層;排水砂層英汉例句雙語例句There are drainage prism, drain on embankment slope, blanket drainage and comprehensive drainage.主要型式有稜躰排水、貼坡排水、褥墊排水和綜郃式排水等。blog.sina.com.cndrainage blanket更多例句词组短语短語blanket drainage 褥墊式排水horizontal blanket drainage 褥墊排水drainage blanket更多词组专业释义土木建築工程排水砂層疏水層排水層機械工程排水砂層