It is the amount of electric charge per unit volume.
是电荷与体积的比值。
By the charge density we mean the per unit volume.
所谓的电荷密度是指单位体积的电荷。
The positive charge in the atom is spread over the whole atomic volume.
原子中的正电荷分布在整个原子体积上。
没有体积费。
This volume shall be provided free of charge to official students (online study only).
本册教材正式学员(交纳学费者)免费在线使用。
This volume shall be provided free of charge to official students (online study only).
本册教材正式学员(交纳学费者)免费在线使用。
应用推荐