第二部分对县级土地利用数据库的建设时期进行了划分。
Chapter II - the division of land use database for county establishment period.
本文还讨论了成熟花粉粒败育时期和败育形态的划分。
Division of mature pollens abortive stage and shape were also discussed in this paper.
从而以本文划分的早、晚期为经、以地域为纬，大致勾勒出该地区夏时期“多重结构的”考古学文化特征的形成过程。
This paper gave a brief account of the multiple culture structure of this area , at the early and late period.
从而以本文划分的早、晚期为经、以地域为纬，大致勾勒出该地区夏时期“多重结构的”考古学文化特征的形成过程。
This paper gave a brief account of the multiple culture structure of this area , at the early and late period.
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