Density ratio
[计] 密度比
🧩 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
You go ahead with the formalities. I'll see to the heavy luggage.
您先去办手续，我来帮您照看大件行李。
The path of duty is the path of safety.
尽职的路是安全的路。
Economy is one powerful motive for camping, since after the initial outlay upon equipment,
图省钱是露营的一个主要动机，因为除了开始时购置或是租借一套露营装备外，