?封闭围阱
... closed impeller type sandpump 闭式叶轮泥浆泵 closed in frunk 封闭围阱 closed in space 密闭舱室 ...
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。