Directly heated cathode
[电] 直热式阴极
🧩 词语组成解析
directly
[daɪ'rɛktli]
adv. 直接地;不久，立即;正好地，恰好地;坦率地;
conj. 一…就…;
di使...变成+rect直+ly…地 →direct直接的+ly...地 → 直接地
heated
['hi:tid]
adj. 热的，加热的;激昂的，兴奋的;激动的;
v. （使）热(heat的过去式和过去分词);
cathode
[['kæθəud]]
n. 阴极\\n[化] 阴极
🗣️ 情景例句
I have some questions to ask.
我有一些问题要问。
He's tired because he worked hard all day today.
他疲倦是因为他今天整天努力工作。
Just then, the gaoler appeared with the precious letter in his bands.
这时狱卒上场，手里拿着那封珍贵的信。