青云翻译

一个IO事件强度的单能光子的窄光束，穿透一层质量厚度X和密度ρ材料，出现我的指数衰减规律与强度

A narrow beam of monoenergetic photons with an incident intensity Io, penetrating a layer of material with mass thickness x and density ρ, emerges with intensity I given by the exponential attenuation law

A narrow beam of monoenergetic photons with an incident intensity Io, penetrating a layer of material with mass thickness x and density rho, emerges with intensity I given by the exponential attenuation law

A narrow beam of monoenergetic photons with an intensity Io incident, penetrating a layer thickness of material with mass x intensity and density ρ, emerges with the exponential attenuation I given by law

A narrow beam of monoenergetic photons with an incident intensity Io, penetrating a layer of material with mass thickness x and density ρ, emerges with intensity I given by the exponential attenuation law