Heterodyne modulator
[电] 见mixer
🧩 词语组成解析
[电] 外差
modulator
[ˈmɑdʒəˌletɚ]
n. 调节器;调制器;
🗣️ 情景例句
Don't get so excited about it.
别因为这事儿太激动。
I'm writing to an old friend.
给一个老朋友。
We have learnt to expect that trains will be punctual.
我们已经习惯于相信火车总是准点的。