Iaser
红外微波激射器
🗣️ 情景例句
What's the meaning of NATO?
NATO代表什么？
After the flood, the carpets were wet for a month.
洪水过后一个月，毛毡还是湿的。
but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves.
但是早期记录地震波的仪器（测震仪）正是采用了这种思路。