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
大坝的控制测量 Measure and domination on dam 土坝清基开挖 Digging and clearing the dam 混凝土坝的施工控制测量 Construction and measure on concrete dam 混凝土坝清基开挖线的放样 混凝土重力坝坝体的立模放样