广泛的以电力为驱动的空中旅行很不现实：飞机发动机需要高密度的能量，而这些只有化学燃料才可提供。
There is no realistic prospect for widespread electric air travel: the jet engines on aircraft need the high-energy density that only chemical fuels can provide.
作为UPS系统的补充，高级缆式pdu可以置于高密度的机架环境或任何需要将电力分配给多个设备的地方。
Designed to complement UPS systems, advanced cabling PDUs can distribute power in high-density rack environments or anywhere conditioned power must be distributed to multiple pieces of equipment.
每一个浮标最高可以产生高达40千瓦的电力，发电的多少依赖于海浪的高度以及速度，同样也依赖于海浪的波长以及海水的密度。
Depending on wave height and speed, as well as wavelength and water density, each buoy can produce up to 40 kilowatts of electricity.
应用推荐