自然研究 meaning in Chinese

nature study

Universal decimal classification . english full edition . exact sciences in general . nature study . conservation . environmental sciences
国际十进分类法.英文全文版.一般精密科学.自然研究.保护.环境科学
The museum has three layers with a total building area more than 40 thousand m2 , owning about 40 million specimens of plants , animals , rocks and minerals in all places of the world , including more than 7 million welwitschiopsida fossil specimens and 500 thousand kinds of books in the library and a large amount of natural study manuscripts and pictures in the earlier period
博物馆共分三层，总建筑面积4万多平方米，拥有世界各地动植物和岩石矿物等标本约4000万号，其中古生物化石标本700多万号，图书馆有书刊50万种，并保存着大量早期的自然研究手稿和图画等珍贵品。