概述Summarize 高斯平面直角坐标Gauss plane coordinate 地形图的分幅和编号The breadth and serial number of relief map 地形图的选用 The selection of relief map 地形图应用的基本知识Basic knowledge of application of relief map 地形图在水利工程规划工作中的应用The application of relief map in Irrigation Projects 面积计算Calculating acreage
视准线法观测水平位移 Observing level displacement in directrix way 波带板激光衍射法观测水平位移 Observing level displacement in laser and diffraction 引张线发光测水平位移 Observing level displacement in light of down-lead 前方交会法测水平位移 Observing level displacement in the way of focusing 挠度测法 概述 summarize
施工控制网的布设 Disposal of construction and controlling 距离、水平角和高程的放样 Space,level angel and height 测设放样点平面位置的基本方法 The basic methods of measuring locations of dots 圆曲线的测设 Measuring round curves
