In this paper , purification process of carbon nanotubes and pre - treatments of surficial decoration for them are studied carefully , and the experimental conditions of surf icial decoration for carbon nanotubes on a large scale are optimized 文中对碳纳米管的纯化以及表面修饰的前处理过程进行了深入的研究,优化了批量表面修饰碳纳米管的实验条件。
Then , plenty of students who has different background are enterring the university ( or colledge ) which brought difficulties to teaching . all these new things and difficulties about teaching need to be studied carefully 高等学校教学对象是身心已经比较成熟的大学生,其社会化程度较高,了解他们对课堂教学的需求对于提高教学有效性、提高教学质量而言是极为重要的因素之一。
After studying carefully and analyzing theories of and experiences in the cooperation of exchange rates in various areas , the author , based on the present situation in 10 + 3 , discusses theories and feasible schemes workable for the cooperation of exchange rates in 10 + 3 本人不揣浅陋,希望通过认真学习和分析各种区域汇率合作理论与经验,并结合10 + 3实际来探讨适用于它们之间的汇率合作理论及可行性方案。
Prof xu wan xu as my teacher , taken on the net course of computer assistant education management that is national bank task . we have studied carefully the design and the exploitation of the net course aiming for the state of net course now 我的导师徐万胥教授承揽了国家级课题? ? 《计算机辅助教育管理》网络课程的开发,针对目前网络课程的现状及其存在的缺点和不足,我们对该课程的设计和开发进行了仔细的研究。
Secondly , the recover of lactide from the ethyl acetate recrystallization solution reutilized the waste solution and heighten the general product ratio . the recovery process was analyzed and studied carefully . moreover the two processa above were compared in different aspects 其次,回收重结晶母液使损失在乙酸乙酯中的丙交酯得到循环利用,对回收工艺过程进行了周密分析和探讨,并比较了以上两种过程的异同。