Fluorubber
氟橡胶
🗣️ 情景例句
What time is it?
什么时间啦？
Why didn't you go?
为什么你不去？
Instruments have been devised and can be so placed that all three elements can be recorded in different graphs.
已经设计出了一些仪器，它按照一定的安放方式就可测绘出这三种运动的曲线图。