Commn.委员会COMabbr.计算机输出缩微胶片(=computer-output microfilm)abbr.组件对象模型(=Component Object Model)commerical crop商品作物commensal group同住群, 共生群Commuting graph交换图commodificationn.商品化commutative law可换律,对易律,交换律com- pilation编纂com-genotypes组合基因型commensal plant共生植物commen resource公用资源commotio cordis心震荡