Apparent powder density
[机] 表观粉密度
🧩 词语组成解析
powder
['paʊdɚ]
n. 粉，粉末;粉状物质;
vt. 在…搽粉;
vi. 涂粉，变成粉末;
🗣️ 情景例句
You should have seen the look on his face
真该看看他脸上的表情
Custom is the guide of the ignorant.
习俗是无知者的向导。
Time is more valuable than money.
时间比金钱宝贵。