片语
transit declinometer
an instrument for measuring magnetic declination
同义词:
declinometer
fibre declinometer吊丝磁偏计
mechanical declinometer机械倾斜仪
compass declinometer罗盘磁偏计
declination compass磁偏计;磁偏针
Verification regulation for image-declinometer像倾斜仪检定规程