what's the difference between ratio and proportion?

what's the difference between ratio and proportion?

ratio 是单纯的比.一个数字.
proportion ,如果有一份一份的意思,就用proportion
ratio
n.
比,比率
proportion
n.
比例,均衡,面积,部分

ratio是指比例，一般可以数字化，比较具体，proportion是指部分，是指大概。

Proportion: the compared relationship between two tings in regard to size, importannce
Ration: a figure showing the number of times one quantity contains another
Ration有包涵关系
Proportion:是两者之间的关系，无包含关系

比率和比例的区别是什么