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
Keep the meter running.
继续打表吧。
What were you doing when I called?
我打电话给你时你在干吗？
The reason lies in its gravity.
其原因在于月球的重力。