单词	效果好
释义	效果好 effectual
随便看	copper dross slag Copper dust and mist copper dust disease Copper dust disease copper earth plate copper earth tube copper electrolysis copper electrolysis wastewater copper electrolyte copper electrolytic refinery coppered coppered carbon coppe red galze coppered steel wire Copper EDTA coppered wire copper efficiency Copper electric copper electrical resistance thermometer copper electrode copper electrodeposition copper electrode position copper electro-deposition copper electroforming copper electroless,