沉陷观测 meaning in Chinese

settlement observation

Mining subsidence observation
开采沉陷观测
Application method of total station in the observation data collection of mining subsidence
开采沉陷观测数据采集中全站仪的使用方法
A description is made of the problems encountered in gps leveling measurement in this field and countermeasures . as observation of ground subsidence is made through measuring the relative movement of the observation stations , it is proposed to base the subsidence observation on change of geodetic elevation . check is made of the accuracy and reliability of this observation method by citing typical examples
介绍了gps水准测量中的若干问题及其解决方法，结合开采沉陷监测需要的是相对变化量的特点，为避免坐标转换造成的精度损失，提出了开采沉陷观测中的下沉值可应用大地高的变化量代替的方法，并对其精度及可靠性进行了实例验证。