Qot-cathode tube
[电] 热阴极管
🧩 词语组成解析
cathode
[['kæθəud]]
n. 阴极\\n[化] 阴极
🗣️ 情景例句
She has an eye for detail.
她有鉴别细节的眼力。
What's your first name?
你的名字叫什么？
The further off this solid obstruction, the longer time will elapse for the return of the echo.
固体障碍物越远。回声返回所用时间就越长。