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单词
molecular pump
释义
molecular pump
noun
:
a vacuum pump that depends for its action on the adhesion of the gas or vapor molecules to a rapidly moving metal disk or cylinder by which they are carried away
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alcove
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alcuna
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alcyonacean
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alcyoniaceae
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ALD
ALD
ald-
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aldazine
aldehyde
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更新时间:2025/5/22 2:45:34