史蒂文斯给他写了张便条，请他去自己的公寓。Stevens wrote him a note asking him to come to his apartment.史蒂文斯遭谋杀源于深仇宿怨。Stevens's murder was the result of a deep-seated and intense hatred.约翰·史蒂文森是谢菲尔德大学的历史学高级讲师。John Stevenson is Reader in ...
A novel furan resin was synthesized by polycondensation between furfuralcohol and furfural.用糠醇和糠醛缩聚制备了新型呋喃树脂.Resinification of furfural on the catalyst was the main cause of deactivation.糠醛树脂化结焦是导致催化剂失活的主要原因.Fig. 5 Varia...