Carbon hydrogen ratio
[建] 碳氢比
🧩 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
Do you live on or off campus?
你住在校内还是校外？
I ought to write a letter.
我应该写一封信。
Oh, that's quite early! Where are we going to meet?
噢，那很早！我们打算在哪儿会合？