Conventional UPS systems can power a data center for an hour or more, and battery systems can be extended centrally to provide more runtime.
传统的UPS电源系统可以支持数据中心一个小时或更多，电池系统则可以将运行时间延长的更长。
2
The NGK battery is a cylinder with sodium in the center, separated from molten sulfur by a ceramic membrane that allows the passage of sodium ions to create the battery's current.
日本研究理事会生产的电池是圆筒状的，中心里的钠由一个允许钠离子通过而产生电流的陶制薄膜分开。
3
Its battery, the size of a tatami mat and weighing about 400 pounds, is under the floor, which helps give the car a lower center of gravity.