Electron emission
[计] 电子发射
🧩 词语组成解析
electron
[i'lektrɔn]
n. 电子;
🗣️ 情景例句
The newspapers don't come out till about ten o'clock.
报纸要差不多十点钟才出来。
No cross, no crown.
无苦即无乐。
torn by the noise of the taxicabs, lorries and buses, and thronged ceaselessly by great crowds.
街道上充斥着汽油味和有毒气体，出租汽车、卡车、公共汽车的噪音刺耳难忍，络绎不绝的人群挤来挤去。