Premonochromator
前单色仪; 前置单色器
🗣️ 情景例句
OK. Since you put it this way. I'll have to comply.
好吧。既然你这么说，我只好同意了。
The black ox has trod on his foot.
祸事临头。
Oh, dear! said Miss Yang. Are you sure you've lost it?
“哎呀！”杨小姐说，“你肯定你弄丢了？”