航空伽玛辐射仪 [核] airborne gamma radiometer

井中伽玛辐射仪 gamma radionmeter in borehold

中子伽玛辐射仪 neutron-gamma radiometer

伽玛闪烁辐射仪 gamma scintillator radiometer

伽玛定向辐射仪 gamma directioned radiometer

伽玛射线辐射光谱仪 gamma radiation spectrometer