当输电距离足够长时，直流输电的经济性将优于交流输电。
As the transmission length reaches a certain distance, DC transmission becomes economically attractive over ac.
把交流变为直流的器件。
直流输电系统接地极电流对交流电网的影响分析。
Analysis on influence of ground electrode current in HVDC on AC power network.
整流器；整流管一种将交流电流转化为直流电流的装置，如二极管。
A device, such as a diode, that converts alternating current to direct current.
把交流电转化成直流电是可能的。
It is possible to convert alternating current to direct current.
大西洋风能网传输的是直流电而非陆地电网使用的交流电。
The AWC will carry direct current rather than alternating current like the onshore grid.
交流电，直流电。
交流电，直流电。
应用推荐