Cathetron
[电]外控式三极汞气整流管
🗣️ 情景例句
I am available as soon as possible.
我随时都可以上班。
Karl must concentrate on his work.
卡尔必须集中精力于自己的工作。
In the end this political movement succeeded and Indians were allowed to make and sell salt.
但最终这场政治运动以印度人获准生产与销售盐而告成功。