Professor Zhong Jinwen' idea of establishing China's folklore is a product of historical necessity on the basis of abundant theoretical , material and organizational preparation.
钟敬文教授关于“建立中国民俗学学派”构想的提出，自有其历史必然性，它是以充分的理论准备、资料准备和组织准备为前提和基础的。
In this section, first expounded the "moral and social," the theoretical basis for the preparation of teaching materials, and then compare the two versions of textbooks.
在这部分，首先阐述了《品德与社会》教材编写的理论依据，然后是对两个版本教材的比较。
The researches are helpful for improving the anti-encrustation performance of biomedical materials, and provide the theoretical basis to the design and preparation of the hydrophobic surface.
本文的研究工作，对于改善医用聚合物材料的防垢性能具有重要意义，同时为超疏水表面的设计与制备提供了理论基础。
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