Packing fraction
[化] 充填率
🧩 词语组成解析
packing
['pækiŋ]
n. 包装，打包;包装材料;（缝隙）填料;
v. 压紧(pack的ing形式);装满;
🗣️ 情景例句
so I wouldn't lose them.
免得我弄丢了。
To start the city planning
着手都市计划
Reading about them increases our understanding without dispelling our fears.
阅读有关昆虫的书能增加我们对它们的了解，却不能消除我们的恐惧的心理。