一九五零年第一测量隊接受了孟陕段水庫测量任務,由於幹部不够,水平選測配合不適當,以及水平爬山困難,經幾個幹部醖釀討論就試用三角水平測量,但三年多來,在平原地區工作,未曾長期試验獲得更多经驗,僅將孟陝、芝壼兩段测量中試用情况,介绍给大家,希望共同研究,提出改進意 In 1950, the first survey team accepted the Meng-Shan reservoir measurement task. Due to lack of cadres, inadequate level selection, and difficulty in climbing mountains, triangular level measurements were tried after several cadres deliberated and discussed. However, for three years More and more, working in the plains, long-term tests have not gained more experience, only Meng Shaanxi, Chicago two sections of the trial in the trial, introduced to everyone, hoping to study together, put forward to improve the Italian