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单词
backing vacuum pump
释义
backing vacuum pump
网络
前级真空泵；前级泵
网络释义
1.
前级真空泵
物理专业词汇英语翻译(A-D) ... background radiation 本底辐射
backing vacuum pump
前级真空泵
backscattering 后方散射 ...
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2.
前级泵
...降低系统的压力到另一 抽气系统开始工作的真空泵;
前级泵
(
Backing vacuum pump
):用来维持另外一个泵的前级压力在其临 …
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例句
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更新时间：2026/8/8 2:06:34