alpha activity meaning in English

放射性

Water quality - radiological methods - measurement of gross alpha activity in non - saline water : thick source method
水质.第3部分:放射性法.第1节:不含盐的水中总活度测量:厚源法
Activity measurement methods in the release of radioactive residual materials and components of nuclear facilities - part 5 : scrap metal contaminated with alpha activity
核技术设备部件和放射性废料释放放射性活度测量方法
Nuclear energy . measurement of environmental radioactivity . water . measurement of alpha activity index in terms of plutonium 239 equivalent in low salted water
核能.环境放射性的测量.水.依据低盐水中钚239当量测量放射性指数
Nuclear energy - measurement of environmental radioactivity - water - measurement of alpha activity index in terms of plutonium 239 equivalent in low salted water
核能.环境放射性的测量.水.根据低盐水中的钚239当量测量活性指数