The Effect of HVDC Modulation on the Transmission Capacity of Cross - Section in AC - DC Hybrid Transmission System of South China Power Grid是什么意思_The Effect of HVDC Modulation on the Transmission Capacity of Cross - Section in AC - DC Hybrid Transmission System of South China Power Grid在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句