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单词
cesium hollow cathode
释义
cesium hollow cathode
cesium hollow cathode
[
′sē·zē·əm ¦häl·ō ′ka‚thōd
]
(electronics)
A cathode in which cesium is heated at the bottom of a cylinder serving as the cathode of an electron tube, to give current densities that can be as high as 800 amperes per square centimeter.
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更新时间:2025/5/10 16:23:16