Pressure ratio
[机] 压力比
🧩 词语组成解析
ratio
['reiʃiəu]
n. 比，比率;比例;系数;
vt. 求出比值，除，使…成比例;将（相片）按比例放大[缩小];
🗣️ 情景例句
What's the problem?
什么事？
All things are difficult before they are easy.
凡事必先难后易。
Do you go to work by bike?
你骑自行车上班吗？