以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 propanediol acetal was synthesized by using st...
Current economic hardships weigh heavily in young women's decisions to find salaried work...目前的经济困难大大影响着年轻妇女在寻找有薪水的工作时的决定。...salaried employees...拿薪水的雇员The high - salaried manager replaced the business tycoon.高薪经理取代...
The possibility of its potential application is discussed for separation of actinon - lanthanon mixtures by ion exchange.讨论了该离子交换法在分离锕 - 镧系元素上应用的可能性....