【物理】测量，导航

pain threshold surveying instrument

marine geodetic survey【测】 海洋;marine geodetic surveying【测】 海洋

inertial surveying system\nISS\n测

elementary geodesy【测】;elementary surveying【测】;general surveying【测】

radar surveying【测】

land-surveying

research surveying and exploration

SUPPORTS for surveying or navigational instruments