Over the other surface of the heart lies another layer of connective tissue, the epicardium.心脏的外表面是由另一层结缔组织, 即心外膜所覆盖.Here are petechial hemorrhages seen on the epicardium of the heart.这是在心外膜看到的点状出血....
本文着重讨论了卤代硅烷醇解反应的机理 、 条件与应用.In this paper the mechanism, conditions and alcoholysis reaction about halogenatedsilane were emphatically discusser.讨论了利用硫代二丙腈直接醇解合成抗氧剂DLTP的方法,筛选出了最佳反应条件.The method of preparing antioxidant DL...