MEI Shi - long , 1991 . Middle and Late Cambrian conodont and trilobite biostratigraphy in Wanxian, Hebei . Unpublished Ph. D thesis of Peking University.武桂春, 2003. 鲁西地区晚寒武世牙形石. 北京大学博士研究生学位论文....an unpublished PhD thesis...
首相正准备和部长们摊牌。The Prime Minister is preparing for a showdown with Ministers.今天资方准备和工会成员摊牌。Management are facing a showdown with union members today.我尽可能地避免同老板摊牌.I'd like to avoid a showdown with my boss if I possibly ...
The results show the level of frustration among hospital doctors.这些结果显示了医院医生的不满程度。For many particle physicists, however, it was a year of frustration.对于许多粒子物理学家来说, 这是受挫折的一年.I nearly went bonkers with frustration.挫败感让我几近疯...
用糠醇和糠醛缩聚制备了新型呋喃树脂.A novel furan resin was synthesized by polycondensation between furfuralcohol and furfural.糠醛树脂化结焦是导致催化剂失活的主要原因.Resinification of furfural on the catalyst was the main cause of deactivation.图5醋酸苯胺比色法,糠醛...