词汇	scumless
释义	scum·less AHD-mlə̇s🌏无耻的
随便看	economic operation efficiency Economic Operation in Hydropower Station economic operation mechanics economic operation mechanism economic operation model economic operation of boiler economic operation of hydropower station economic operation of power system economic operation of thermal plant economic operation of transformer economic operations economic operation way economic operator economic opportunities for economic opportunity economic optimization economic optimization criterion economic optimize economic optimum applicaion rate economic optimum application rate Economic Optimum Population economic order economic ordering model economic ordering quantity economic order quantity