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gravity-held check valve
释义
gravity-held check valve
网络
重力式单向阀
网络释义
1.
重力式单向阀
valve 阀门专业词汇A-Z ... graduating valve 节制阀
gravity-held check valve
重力式单向阀
greaseless valve 无脂密封阀 ...
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investment research
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investment review board
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investments classifiable as current assets
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英汉双解词典包含2704715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。
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更新时间:2026/8/19 15:11:09