Magnesium phthalate dihydrate was synthesized by rheological phase reaction.用流变相反应法合成了二水邻苯二甲酸镁.The crystallization course of dihydrate calcium sulphate affected by APA was also researched.另外还研究了添加不同类型的活化疏松剂对二水硫酸钙结晶过程的影响....
Megamalls and fast food restaurants line the highway system.公路系统沿线有大型商场和快餐店。The regions are interconnected by an excellent highway system.那些地区通过完善的公路系统相互连接。Chris crawled on his hands and knees out onto the highway.克里斯手脚并...