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热阴电子管
meaning in English
thermionic valve
valve
Related Words
阴电
阴电荷
阴电微粒
阴电原子
阴电辉
阴电势
阴电元素
阴电性
阴电位
阴电的
热阴磁控管真空计
热阴电离真空计
热阴极
热阴极x射线管
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