Major Composite of thc SeaIant is bisphenol A epoxy resin, dicyandiamide, ureido compound and modifier etc.以双酚A环氧树脂 、 双氰胺 、 脉及改性材料为主要成分配制的胶粘剂可在中温迅速固化.The less stable compounds were converted into a compound called Delta-...
布拉德利将作为洛杉矶任期最长的市长被载入史册。Bradley will go down in history as Los Angeles' longest serving mayor.总统任期为5年。The president shall hold office for five years.总统首届任期的最后两个月非常糟糕。The final two months were a miserable coda to the ...