The system generates a direct current, so using it to power DC devices locally is more efficient than switching to the alternating current needed to feed it back to the grid.
该系统产生的电流为直流电，所以用来驱动本地的直流点装置比将其转化为交流电输入电网来的更有效率。
It was associated with the interest characteristic of power closely, but Its direct cause is the short and error in our current system of personnel matters.
它同权力的利益属性有密切联系，而我国现行干部人事制度的不足与执行中的偏差则是其直接原因。
High voltage direct current (HVDC) aircraft electrical power generating system (EPGS) is a new type of aircraft power generating system.
飞机高压直流电源系统是一种新型的飞机电源系统。
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