表面活度 meaning in English

surface activity
surfaceactivity

The survey team conducts surveys along pre - designated survey routes in the northeast part of the new territories . it measures ambient gamma dose rates , surface activity concentrations of beta emitters at ground surface and in - situ gamma spectrum of land soil
流动巡测队会沿新界东北部预先选定的测量路线，在不同位置量度环境伽马辐射剂量率、地面的贝他放射体的表面活度浓度和原位置土壤的伽马能谱，以及收集大气飘尘、放射性碘、擦拭及其他环境样本。