Charge density
[化] 电荷密度
🧩 词语组成解析
🗣️ 情景例句
you're all going to have your tonsils out.
你们都要切除扁桃腺。
It is never too old to learn.
为学不怕年高。
The currents of air that the walls of the ship direct upwards, as well as in the line of its course, are enough to give the great bird with its immense wings sufficient sustenance and progress.
沿船体的上升的气流和沿航线向前的气流给这种巨翼大鸟以足够的浮力和推力。