Permometer
接入雷达回波共振器的装置
🗣️ 情景例句
What kind of guarantee do you offer?
这种车有售后服务保证吗？
Do you have any goods to declare for customs?
你有任何物品要在海关呈报吗？
Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries
比如，很多公司向图书馆借阅科技书籍时感到很困难，