?封底管椿
... 内圈流域 Closed drainage 封底管椿 Closed end pipe pile 闭口湖泊 Closed lake ...
封底管桩
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。