With the development of power industry and the rise of voltage class, more and more gas insulated substations (GIS) are used in modern power systems.是什么意思_With the development of power industry and the rise of voltage class, more and more gas insulated substations (GIS) are used in modern power systems.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句