(in a low-pressure discharge tube) a luminous region in the vicinity of the cathode, from which it may be separated by the Crookes dark space.
| 单词 | θ77077 |
| 释义 | the world > matter > physics > electromagnetic radiation > electricity > discharge of electricity > [noun] > dark space at low pressure > luminous space between (1) negative glow1838 (in a low-pressure discharge tube) a luminous region in the vicinity of the cathode, from which it may be separated by the Crookes dark space. |
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