This paper introduces the method suited to the separation of land parcel by means of analytic coordinate definition boundary point in the routine cadastral surveying and mapping.
本文介绍了地籍测绘日常工作中宗地分割的方法。该法适合于用解析坐标定义界址点的宗地分割；
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Through trained, BP neural network can obtain strong nonlinear mapping ability to learn the data characteristics of the hydrodynamic performance of ship propeller as a mathematic analytic form.
Based on the field mapping and laboratory experiment and analytic researches made in the recent years, the paper states static-dynamic regularity of landslides.