Heterodyne wavemeter
[电] 外差波长计
🧩 词语组成解析
[电] 外差
[电] 波计
🗣️ 情景例句
He's a very famous person in Chinatown. He's also from your home city, Peking.
他在唐人街大名鼎鼎，他也是从你的家乡北京来的。
It seems he knows everything.
看起来他好像知道一切事情。
I have my hair cut every month.
我每个月都理发。