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The preparation methods of quaternary ammonium salt of chitosan at home and abroad, meanwhile were introduced, and heir advantages and shortcomings were compared.
中文意思:
摘要对目前国内外壳聚糖季铵盐的制备方法加以介绍,并比较了它们的优缺点。


以下为相关句子列表(点击查看,可以看对应的解释):
The preparation for his cough included camphor. 为医治他的咳嗽而调制的药中包括樟脑。
The preparation for this journey begins with us on our campus. 这种人生历程的准备将从校园开始。
The preparation methods and applications of activated hollow carbon fiber are introduced in detail. 本文概述了中空活性碳纤维的制备过程及其应用。
The preparation methods of dialdehyde starch were introduced; with its applications in paper making, textile and etc. The advantages and the shortcomings of these preparation methods were discussed. 摘要介绍双醛淀粉的制备工艺,对各种制备工艺的优缺点进行了比较,并介绍双醛淀粉在造纸、纺织等行业中应用。
The preparation methods of palladium membrane and modified technique are introduced for preparation of ultra-thin palladium membrane on support. 摘要介绍了钯膜的制备方法及在载体上制备超薄钯膜的改进技术。
The preparation methods of quaternary ammonium salt of chitosan at home and abroad, meanwhile were introduced, and heir advantages and shortcomings were compared. 摘要对目前国内外壳聚糖季铵盐的制备方法加以介绍,并比较了它们的优缺点。
The preparation methods with shapes of sphere, needle, spindle, flake, dumbbell and olive etc were mainly introduced. 重点介绍了球状、针状、纺锤状、片状、哑铃状、橄榄状等不同形貌超细碳酸锶粒子的制备方法。
The preparation methods, reaction mechanism and properties of poly(malic acid) synthesized by direct polycondensation are reviewed, and the prospects in this field are also introduced. 作者综述了直接聚合法合成聚苹果酸的方法、反应机理及性质,并展望了直接聚合法合成聚苹果酸的前景。
The preparation of a man a la suckling pig is grotesque yet impossible to turn away from. 准备一道烤活人大餐是闻所未闻见所未见的,然而却不那么可能转过脸不看。
The preparation of cardioplegic solution should meet the following requirements: ①a proper concentration of potassium must be maintained; ②all principal electrolytes in the myocardium should be contained;③an appropriate asmolarity should be sustained, and 心脏停搏液的配置必须符合下列要求:①保持适当的钾离子浓度;②含有正常心肌所含有的主要电解质;③维持适当的渗透压④溶液必须易于配制与稳定。
The preparation of chiral sulfoxides and their applications in organic synthesis are reviewed. 摘要本文对手性亚碸的制备及其在不对称反应和天然产物合成中的应用进行了综述。
 
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