放射性常数

radioactive substance

radiation hydrogeology【地质】;radioactive hydrogeology【地质】;radiohydrogeology【地质】

radiation well logging【地质】;radioactive well logging【地质】;radioactivity logging【地质】

radioactive, solids reactor waste, solid

radioactive decay law

radioactive logging equipment【地质】

radioactive families

radioactive element, radioelement