The coefficient of performance(COP) can reach 10.4 and the average value is about 5.4.The average photovoltaic efficiency is around 13.4%.是什么意思_The coefficient of performance(COP) can reach 10.4 and the average value is about 5.4.The average photovoltaic efficiency is around 13.4%.在线翻译_英语_读音_用法_例句