| 单词 | cathode dark space |
| 释义 | > as lemmascathode dark space cathode dark space n. = Crookes space n. at Crookes n. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > discharge of electricity > [noun] > dark space at low pressure Crookes layer1884 Crookes space1884 cathode dark space1914 Hittorf dark space1916 1914 Royal Soc. Catal. Sci. Papers 1800–1900, Subject Index III. ii. 685/2 Cathode dark space, origin. 1920 Discovery July 217/1 The dark space around the negative pole, which has since been referred to as the Crookes or Cathode Dark Space. < as lemmas |
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