1·The material of human fossil, culture relic and zoolite in the Old Stone Age are very abundant.
古代石器时代的人类化石，文物和人为动物的物质非常丰富。
2·The material of human fossil, culture relic and zoolite in the Old Stone Age, which are excavated in the Northeast of China, are very abundant.
东北地区出土的旧石器时代人类化石、文化遗物和动物化石材料十分丰富。