calcium sulphate crystal 基本例句 硫酸钙晶体 Because of their larger size and structure, gypsum crystals settle and dewater better than calcium sulfite crystals, reducing the required size of by-product handling equipment.因为水晶解决的他们大号和结构,石膏脱水更比亚硫酸钙晶体,降低的副产品处理设备尺寸的要求。