characteristic gas特征气体characteristicn.特点；特性；特色adj.典型的；特有的characteristics of offering energy供能特点Characteristics of the Development发展特点characteristic-difference scheme特征线差分法characteristic collection of books特色馆藏characteristics oYCNC hole grinder数控内孔磨床的特点characteristic of bearing capaeity承载力特征值characteristic figurative subjects特色喻体characteristics of flood disasters水灾特点characteristic information service个性化信息服务Characteristicses of compatibility配伍

1. It is this marked increase in the dense fibrous tissue stroma that produces the characteristic hard "scirrhous" appearance of the typical infiltrating ductal carcinoma.
   致密的纤维结缔组织间质的显著增生造成了典型浸润性导管癌的特征性病变硬癌特征。