Pemf
[医][=pulsating electromagnetic field]脉冲电磁场
🗣️ 情景例句
May I see the mirror, please?
我可以照照镜子吗？
He concentrated solely on law studies.
他把全部精力只用于攻读法律。
I just didn't wish to put you to the trouble of changing a large note.
只不过我不想麻烦你破开一张大票子罢了。