current density range

例句：

1. 1. The battery's capacityis within the acceptable range for its size.
   电池的容量在其尺寸范围内是可接受的。
2. 2. The electric motor operates within therecommended current density range.
   电动机在推荐的电流密度范围内运行。
3. 3. The design of the circuitboard must comply with the specified current densityrange.
   电路板的设计必须符合指定的电流密度范围。