The single-phase earth fault is the undercurrent earth system has the probability highest breakdown type, approximately composes all breakdowns number of times 80%.是什么意思_The single-phase earth fault is the undercurrent earth system has the probability highest breakdown type, approximately composes all breakdowns number of times 80%.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句