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
Let's go.
我们走。
What shall I send him for his the New Year?
我要送他什么东西作为新年礼物？
do in fact run out of energy in accordance with the second law of thermodynamics (whether the whole universe does so is a moot point at present).
也都会消耗完其能量（整个宇宙是否如此，目前尚有争论）。