Photoradiometer
[医] X线[辐射]量计
🗣️ 情景例句
What is your responsibility there?
你在那主管什么？
Nothing is difficult to a man who wills.
世上无难事，只怕有心人。
You never have to travel miles to see your friends.
你去看朋友根本不用跋涉好几英里，