coutn.标准输出COpref.共同；一起；联合abbr.公司（=company）abbr.郡；县（=county）abbr.指挥官（=Commanding Officer）covariance difference协方差差分cocusing of headlamps头灯聚焦Coagulatien mechanism凝血4项coumarone indeneresin香豆酮树脂, 香豆酮茚树脂co-keyword analysis共词分析cohomology of a group群的上同调coccidiosis enteritis肠球虫病coulometric titration电量滴定,库伦滴定,电位滴定Coulomb' s composites煤炭库存Cochlodinium radiatunn.辐射状旋沟藻