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单词
crookes dark space
释义
WordReference Random House Unabridged Dictionary of American English © 2024
Crookes
′
dark
′
space′,
[
Physics.
]
Physics
the dark space between the cathode glow and the negative glow in a vacuum tube, occurring when the pressure is low. Also called
Crookes
′
space′.
after Sir west, western.
Crookes
1890–95
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更新时间:2026/3/6 15:33:11