Vacuum switch
[化] 真空开关
🧩 词语组成解析
switch
[swɪtʃ]
n. 开关;转换，转换器;软鞭子;[信]接线台;
vt.& vi. 转变，改变;转换;关闭电流;鞭打;
vt. 转换;挥动（棍棒、鞭子等）;迅速转动;鞭打;
vi. 交换;调换;
🗣️ 情景例句
He should just about get by in the exam.
他这次考试还能勉强及格。
It's faster to go by plane than by boat.
和坐船比，坐飞机是更快的。
Fine. What's the weather like in Beijing?
很好。北京的天气怎样？