Scholars from home and abroad have been conducting extensive and detailed research in Naxi Society and its history since the 20th century.

20世纪以来，中外学者对纳西族的社会历史进行了广泛的研究。

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The author thinks that it is a good try of research method to study hometown novels of China of the 20th century from the modern narrative standpoint.

本文认为，从现代叙事的视角研究20世纪中国故乡小说的意义乃是在于一种新的研究方法的尝试。

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The software operations research which was founded from the 80s in the 20th century makes itself adapt to the society.

运筹学的研究要“返朴归真”，20世纪80年代后软运筹学的建立，使得运筹学更好地适应现实世界。

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Towards the middle of the 20th century, scholarly research revealed that the fabled Silk Roads, far from being mere trade routes, were cultural highways that played a pivotal role in linking East and West, intermittently bringing together nomads and city dwellers, pastoral peoples and farmers, merchants and monks, and soldiers and pilgrims.

UNESCO: Culture