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
A journey of a thousand miles begins with a single step.
千里之行，始于足下。
I have a toothache.
我牙好痛。
Just the weekend. Well, I must be off. See you when I get back.
只呆这个周末。好啦，我得走了。回来再见。