词汇	ion-exchange softening
释义	ion-exchange softening 离子交换软化
随便看	new types of agricultural businesses new types of business new types of Chinese think tanks new types of collective farms new types of combat platforms new types of drug new types of farm implements New types of flame-retardant materials new types of foreign-made refractory glass new types of industrialization New types of seasoning flavors new types of steel new types of terrorism new types of trade new-type sports teacher new-type sprayer new-type sprocket new type stabilization pond new-type state farm new-type state farms new-type stop log gate new-type straw fiber walling material new type structure new-type suspended filler new type teacher