第六章，河洛与海岱地区夏代至早商早期文化的交流与影响；
The sixth chapter is the cultural communication and influences between Heluo and Haidai regions in Xia dynasty and early period of early Shang dynasty.
关于海岱地区新石器时代的玉器，此前已有学者从不同角度作过研究。
Some scholars have study the jades in Neolithic period in Haidai region from different angles, but few analyses on the origin of raw material of jade and technology.
地处黄淮下游的海岱地区，新石器时代偏早时期是以种植粟类作物为主的旱作农业区。
The Haidai region, which lies in the lower Yellow and Huai River Valley, was mainly a millet planting dry farming area in the early Neolithic period.
到龙山文化时期，海岱地区的南部和东部沿海一带，已经形成了一定规模的稻作农业经济。
The coastal region of East and South in Haidai region had formed a scale rice raising agriculture during the Longshan period.
山东龙山文化是黄河下游海岱地区一支重要的考古学文化，在海岱地区社会文明化进程中起着承前启后的作用。
Shandong Longshan Culture is an important archaeological culture in Haidai region of the lower reach of Yellow River, which had played the role in the process of social civilization in Haidai region.
通过与研究程度较高的岱海进行对比，说明对本地区与岱海具有很好的对应性。
And it can be concluded that this area is well correspondent with Daihai Lake which have been highly studied by correlating them.
通过与研究程度较高的岱海进行对比，说明对本地区与岱海具有很好的对应性。
And it can be concluded that this area is well correspondent with Daihai Lake which have been highly studied by correlating them.
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