【摘要】 介绍上海市2001年一、二、三等水准网复测情况,对其最终计算成果以及与1995年复测的高程变化进行分析,对现有的上海市水准网高程使用及复测提出建议。更多还原

【Abstract】 In the paper,the repetition Situation of Shanghai leveling networks of order 1,2,3,4 in 2001 are introduced,the final adjustment results are analysed and compared with the results of the repetition in 1995,and the suggestions on the applications and repetition of some heights in Shanghai leveling networks are presented.更多还原