Reluctometer
磁阻签质仪(检查钢制品质量)
🗣️ 情景例句
He's the Dean of Admissions for the University of Michigan.
他是Michigan大学的新生注册主任。
I wasn't born yesterday.
我又不是三岁小孩。
Oh, yes, no problem about that.
哦，可以。没问题的。