目标方位角测量
target azimuth measurement
天文方位角测量
the survey of astronomical azimuth
方位角法导线测量
running traverse by azimuth
测方位角精度
azimuth measuring accuracy
船磁方位测量
heading survey of ship magnetism
纯方位量测
bearing-only measurement
bearings-only measurement
Bearings only measurement
单点井斜方位测量仪
single shot directional surveying instrument
地－井方位测量
surface-borehole azimuth survey
方位测角计
azimuth indicating goniometer
方位测量系统
orientation measuring system