黑药和镁的混合物具有离析的倾向.Mixture of black powder and magnesium have a tendency to segregate.这能离析为旋光异构体 吗 ?Can it be resolved into optical isomers?看物质能否由于沸腾和冻结而离析为组成该物质的元素.See whether the material can be separated into its element...
Precautions had to be taken to prevent pilfering.必须采取防范措施阻止偷盗行为。You must take all reasonable precautions to protect yourself and your family.你必须采取一切合理的预防措施，保护自己和家人。The Danes had selfconfidence of conquerors, and their se...
There is no prominent change of gelatinization properties during ohmic heating.淀粉溶液在通电加热时其糊化特性无明显变化.Gelatinization characteristics of potato using as auxiliary material for beer were studied.研究了马铃薯用作啤酒辅料的最佳糊化工艺.The steep...