cronn.克龙(时间单位；等于百万年)n.一个linux下的定时执行工具CRn.镉比值(呼叫率；阻容；托架折回)cr ystallizable prefection结晶完整性criminological malingering犯罪型诈病Cr-based metal substrate铬基金属衬底Crohn's disease of pylorus油渣加热器cranial lobe of cerebellum小脑前叶critrcal inversion density临界反转密度Cr mineral melting residue铬矿渣crista lacrimalis anterior泪前嵴Cranial autonomic function颅自主功能cresive social institution渐变的社会制度