第二部分综述了国内外关于房地产开发的空间理论研究状况。
Part two reviews the domestic and international real estate development on the state space theory.
本文围绕矩形永磁体的空间磁场分布问题，进行了系列理论研究、基础实验研究及数值模拟研究。
Surrounding the special magnetic field distribution of the rectangular magnet, series research of fundamental experiments, theoretical analysis and computing simulations were presented.
流域空间结构研究是空间结构理论研究的深化，是基于具体区域类型的空间结构理论研究尝试。
Valley spatial structure study is beneficial for the further development of spatial structure theories based on the concrete region type.
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