An auxiliary power unit (APU) is used to charge the first battery to maintain a desired voltage across the first energy storage unit.
以及辅助动力单元,其可操作以给所述第一能量存储单元充电。
An auxiliary power unit (APU) is used to charge the first battery to maintain a desired voltage across the first energy storage unit.
以及辅助动力单元,其可操作以给所述第一能量存储单元充电。
应用推荐