Based on the Back-to-Back Project for the Northwest and Central China Connection, This report studies the harmonics and ac filter at ac side in the HVDC converter station.
本论文以西北—华中联网背靠背直流换流站工程为基础,进行换流站交流侧谐波和交流滤波器的研究。
2
Hope is the tie and connectionbackto Source, back to Love, back to the remembrance of the Oneness.
希望是回到源头、回到爱、回到统整性记忆的纽带和连接点。
3
For many college students, backto school also means backto downloading music over the university's high-speed Internet connection.