category use类别使用categoryn.种类；类别；范畴category of topological spaces拓扑空间的范畴category of soil classification土壤分类级别category of paired relationship成对范畴category and selection principle种类及选用原则Category of Involutive Quantales对合Quantale范畴category and type logic sequence范畴类型逻辑category of subjective evaluation主观评价范畴Category C car driver training.类汽车驾驶员培训。Category of finance and economics财经类category of the superacid catalyst超强酸类催化剂