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单词 Geissler tube
释义 Geissler tube
An early form of gas-discharge tube designed to demonstrate the luminous effects of an electric discharge passing through a low-pressure gas between two electrodes. Modified forms are used in spectroscopy as a source of light. It was invented in 1858 by Heinrich Geissler (1814–79)
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更新时间:2025/6/22 21:18:14