（续）三、发展时期———本世纪５０年代到９０年代在各国收藏蒙古文古籍的第三个阶段，中国进行的蒙古文古籍收藏工作占有重要地位，在当今世界收集蒙古文文献最多的国家中，中国无论在收藏的数量、质量还是在种类方面都名列前茅。新中国成立后十分重视民族文化的发展，广泛 (Continued) III. Period of Development --- During the third phase of the collection of ancient Mongolian books from various countries in the 1950s and 1990s, the collection of Mongolian ancient books held by China plays an important role in collecting the most Mongolian literature in the world today Among the countries in China, both in terms of quantity, quality and variety are among the best. After the founding of New China, it attached great importance to the development of ethnic culture and was extensive