Reluctometer
磁阻签质仪(检查钢制品质量)
🗣️ 情景例句
May I have a bus map, please?
请给我一份公共汽车路线图好吗？
We must work out some plan to increase our sales.
我们必须制定一些计划来提高销售成绩。
He gets into the lift. It takes him down to the first floor.
他进入电梯。他乘电梯下到1楼。