求翻译：本文首先讨论了国内外（似）大地水准面精化的发展状况，并系统讲述了不同高程系统及相应的起算基准面，大地测量边值问题，详细的阐述了确定似大地水准面三种基本方法的原理，即几何方法、重力学方法和组合法的原理，并研究了这三种基本方法的区别和特点。重点研究了似大地水准面精化模型如何确立、移去~恢复法的原理以及精化区域大地水准面的技术途径和模式。随后介绍南昌市似大地水准面的精化及其结果分析，另外，还介绍了南昌市似大地水准面成果的正确性和实用性检测，同时结合南昌市似大地水准精化模型案例进行分析，得出了一些有意义的结论。是什么意思？

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The paper first discussed at home and abroad (seemingly) geoid streamlined development situation and system addresses the different systems and the corresponding elevation of the geodetic datums, edge value, presents a detailed may wish the geoid three basic methods of principle that geometry method

This article first discussed domestic and foreign (has resembled) the geoid purification development condition, and the system narrated the different elevation systematic and corresponding begins reckoning the reduced plane, the geodetic survey boundary value problem, the detailed elaboration determ

Paper first discussion has both at home and abroad (like) Earth geoid fine of of development status, and system tells has different elevation system and the corresponding of starting benchmark surface, Earth measurement side value problem, detailed of described has determine like Earth geoid three s

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