The document does spell out some health policies in detail, such as how much radiation astronauts can be exposed to from space travel (No more radiation than the amount that would increase the risk of cancer by 3 percent over the astronaut's career) and t
The document does spell out some health policies in detail, such as how much radiation astronauts can be exposed to from space travel (No more radiation than the amount that would increase the risk of cancer by 3 percent over the astronaut's career) and t
文件中的确详细载明某些健康政策，如太空人太空之旅会暴露于多大的辐射线下（太空人一生暴露于辐射的量，不得高于会使致癌率增加3%的剂量），另外，太空人每周工时不得超过48小时。