The houses belched people; the doorways spewed out children.从各家茅屋里涌出一堆一堆的人群, 从门口蹦出一群一群小孩.He rambled under the walls and doorways.他就顺着墙根和门楼遛跶.Old women in black shawls peered at us doorways.披黑纱巾的老妇人站在门口偷偷地瞅着我们....
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...