excessus[医] 过度excessn.超过；过量；过剩adj.过量的；额外的excess insurance超额保险excess elongation过度伸长excess population过剩粒子数excess components过剩成分excess power peak剩余功率的峰值excess reactivity后备反应性,剩余反应性excess production超额生产excess redundancy超额冗余度excess air factor过剩空气系数,过量空气系数excess fifty code余50码