settlement observation precision 沉降观测精度
equal precision observation 等精度观测
Equal-precision observation 等精度观测
An observation design criterion which ensures the observation precision of the vertical deflection is presented.
提出了保证垂线偏差测定精度的观测设计准则。
The real-time correction of system errors is one of basic terms for guaranteeing the observation precision of telescope.
系统误差的实时修正是保证望远镜观测精度最基本的条件之一。
The inverted vertical in dam distortion monitoring is an observing reference point, the installation precision of which affects the observation precision.
倒垂线在大坝变形监测中是一个观测基准点，其安装精度的高低直接影响着大坝变形的观测精度。
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