Actinometry
n. 辐射测量学\\n[化] 曝光测定; 光能测定学; 光化线强度测定
🗣️ 情景例句
Oh, fine, fine. Be here a few minutes early.
啊， 好， 好。请早几分钟到这。
The television set is out of order.
这电视机出毛病了。
There is another good reason for taking a part-time job.
干兼职工作还有一条充分的理由。