The basic reason of dual economy lies in the difference between division organization and its evolution path.
二元经济产生的根本原因在于分工组织及其演进路径的差异。
The discovery of Ordovician-Devonian biotas and strata provide new important evidence for the stratigraphic division and correlation and the study of the tectonic evolution of the Qiangtang area.
羌南地区奥陶纪—泥盆纪生物和地层的发现，为与邻区地层划分对比和探讨羌塘构造演化提供了重要依据。
The division of labor of hand and foot, it is a milepost of human evolution.
手与脚的分工，是人类进化的一个里程碑。
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