Beam-switching tube
[电] 电子束开关管
🧩 词语组成解析
beam
[bim]
n. 梁，栋梁;束;光线;（电波的）波束;
vi. 发出光与热;面露喜色;
vt. 播送;以梁支撑;用…照射;流露;
vt.& vi. 笑容满面，眉开眼笑;发射电波，播送;放出束状的光（或热）;
[计] 交换\\n[经] 转换, 调换, 调头
🗣️ 情景例句
I believe it. Even without looking.
我能相信。即始不看我也知道。
Generally speaking, it's cheaper but slower to ship goods by sea than by rail.
总的来说，海运比铁路运输更便宜，但速度慢一些。
Oh, good evening, Lucy. Come in. Nice to see you!
噢，晚上好，露茜。请进。见到你真高兴！