This paper describes the basic principle of solving the boundary value problem in physical geodesy by establishing the point-mass model with scattered measurements on the earth's surface.
本文论述了以地面离散的测量数据通过建立点质量模型的方法求解物理大地测量边值问题的基本原理。
Combination of land features and the planning of roads, village sites scattered reasonable order status, state-owned land, and further release of land value, speed up the process of urbanization.
结合地块特点和规划道路，合理整理现状零散村用地、国有土地，进一步释放土地价值，加快城乡一体化进程。
Natural gas is a kind of energy with high heat value, low cost and environmental protection. It is clean and tidy for factory. Our Natural gas ovens has scattered over ChenDu, ChongQing and JiLin etc.
天然气是高热值、低成本的环保性能源，清洁卫生、工厂整洁，已在成都、重庆、吉林等地使用。
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