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平面控制测量
earth.sc. plane control survey
hydroel.st. horizontal control survey
平面控制测量测定控制点的平面坐标值所进行的测量
expl. plane control survey
平 面 控制测量: 11 phrases in 4 subjects
Earth sciences1
Explosives and Explosive Ordnance Disposal2
Metallurgy1
Technology7