镭盐
基于1个网页-相关网页
The matter that the Curies had discovered was radium. It looked like ordinary salt, but was one million times more radioactive than uranium.
居里夫妇所发现的物质就是镭,看起来它就像普通的食盐一样,而它的放射性却铀要大一百万倍。
youdao
应用推荐
模块上移
模块下移
不移动