本文简要介绍了国内外对煤的化学结构，及其在溶剂精炼工艺中的特性研究的主要成果和结论。
This paper reviews the main achievements and conclusions in research of coal chemical structure and characteristics in solvent refining processes in the world.
第五章研究结论与反思，总结了本研究的主要成果和结论，并对存在的不足进行了分析与展望。
Chapter five is research conclusion and consideration. It concludes major achievements and conclusions of the research, analysis drawbacks and the future.
结合最新研究成果，从裂纹尖端应力场和裂纹扩展两个方面，阐述了功能梯度材料弹性断裂分析的研究方法和主要结论。
Based on the latest research fruits, methods and main conclusions of FGMS fracture analysis are reviewed from the aspects of asymptotic fields near the crack-tip and crack expansibility.
第五章是结论，总结了《雨王亨德森》体现的主要思想，揭示它的重要内涵，并总结论文的成果和存在的不足。
Chapter Five is the conclusion that summarizes the main ideas embodied in Henderson the Raining King and reveals its significance, as well as the achievements and limitations of the present study.
第五章为结论，总结了本文研究的特点，本文研究的主要成果与结论，并提出了存在的问题和今后的研究方向。
Chapter five: conclusion. The character, achievements and terse conclusions of this paper are summarized; shortcomings of this paper and future research orientations are put forward.
第五章为结论，总结了本文研究的特点，本文研究的主要成果与结论，并提出了存在的问题和今后的研究方向。
Chapter five: conclusion. The character, achievements and terse conclusions of this paper are summarized; shortcomings of this paper and future research orientations are put forward.
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