?密闭砂滤器
... 闭阖核壳 closed nuclear shell 密闭砂滤器 closed sand filter 密闭分液漏斗 closed separating funnel ...
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。