目的探讨显示小鼠球旁细胞的适宜染色方法,更好地为教学和科研服务。方法取20只小鼠肾组织做石蜡切片,随机分为4组,分别用HE染色、......

Based on the study of the meshing theory of a new silent chain and sprockets, and the rolling cutting theory of sprocket......

A novel poly(d,l-lactic acid) (PDLLA) based biomimetic polymer was synthesized by grafting maleic anhydride, butanediami......