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
He's so funny.
他很逗趣。
Take care of yourself and don't forget to keep in touch.
多多保重。别忘了保持联系。
I must always keep on trying to do my best.
我必须始终继续作出最大的努力。