Eliminating harmonics is one of the key technologies of High - Voltage Direct Current ( HVDC ) transmission systems.

谐波治理是高压直流 ( High VoltageDirectCurrent,HVDC ) 系统的关键技术之一.

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ABB is connecting parkwind farm in the world – using high - voltage direct current ( HVDC ) transmission technology.

ABB利用高压直流 ( HVDC ) 传输技术连接这个全球最远程的风力发电场.

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