R-fvalue
[化] R-f值; 比移值
🗣️ 情景例句
They do.
是的。
In fifty years there'll be twenty people per square yard, it is written here.
这里写着，再过五十年每平方码将要住着20人的人口密度。
Shall I make an appointment to see him?
我是不是要约个时间跟他见见面？