Gasetron
汞弧整流器, 水銀整流器
??? 情景例句
Who do you work for?
你是做什么工作的？
I wish you would give me a more detailed description of your trip.
我希望你將給我更詳細地描述你的旅行。
That was quick!Have you finished already?
好快啊！你已經澆完了？