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
Stocks, shares and bonds are good alternatives for personal investment.
储蓄、股票和债券是个人投资很好的选择。
Deep rivers move in silence, shallow brooks are noisy.
深水静静流，浅溪潺潺流。
Do you want to make it earlier or later?
要提早还是延迟呢？