Determination of specific creepage distance and equivalent salt deposit density of external insulation for Guangdong-side converter station of 500 kV DC line from the Three Gorges to Guangdong是什么意思_Determination of specific creepage distance and equivalent salt deposit density of external insulation for Guangdong-side converter station of 500 kV DC line from the Three Gorges to Guangdong在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句