ratio英语怎么说

ratio: [ 'reiʃiəu ] n. 比,比率词形变化: 名词复数:ratios 例句与用法: 1. The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。 2. Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。 3. The ratios of 1 to 5 and 20 to 100 are the same. 1与5之比和20与100之比相同. 4. The interval between any two frequencies having a ratio of2 to1. 倍频程频率比率为2比1的两个频率的间隔