一、什么是放射线很久以来,人类就在自然界的放射线的包围会中生活着。来自字宙的放射线倾注在地球上.我们居住的大地和混凝土结构的建筑物等也都经常射出放射线来。就是在大米、蔬菜、酒和牛奶等食物中,也都含有放射性物质。在自然界中,很难找到和放射能 First, what is radiation For a long time, human beings in nature surrounded by radiation will live. Radiation from the universe is pouring on Earth, and the buildings we live in, concrete structures, and so on, often emit radiation. It is in rice, vegetables, wine and milk and other foods, but also contain radioactive substances. In nature, it is hard to find and radiate energy