Monochromators
(monochromator 的复数) n.[物]单色器, 单色仪, 单色光镜
🗣️ 情景例句
And my phone number is 797-7963.
我的电话是797-7963。
You were here in February,weren't you?
二月份你曾在这里，对不对？
They've gone to London.
他们去伦敦了。