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单词
helium spectrometer
释义
helium spectrometer
helium spectrometer
[
′hē·lē·əm spek′träm·əd·ər
]
(spectroscopy)
A small mass spectrometer used to detect the presence of helium in a vacuum system; for leak detection, a jet of helium is applied to suspected leaks in the outer surface of the system.
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更新时间:2026/4/19 19:33:33