Collimators
n. 准直仪; 描准仪
🗣️ 情景例句
I have no definite ideas in that area right now.
在这方面目前我还没有具体的想法。
The wise man knows he knows nothing,the fool thinks the knows all.
聪明人自认一无所知，愚笨人自负无所不晓。
Yes.
看见了。