矿山压力观测设备
observing equipment of mine pressure
前兆观测设备
precursory observation device
precursory observation devices
AWOS实时观测资料
AWOS real-time observation data
观测高度修正
observed altitude correction
观测断记
stop-recording of observation
观测点密度
density of observation point
观测点埋设
burying of observation point
观测船位误差
error of observed position