·2,447,543篇论文数据,部分数据来源于NoteExpress
After all, the Sun has many more atoms of any element, say iron, than does a meteorite specimen, but the ratios of iron to silicon in the two kinds of matter might be comparable.
毕竟,太阳中任何元素的原子,比如说铁,都比陨石标本的原子要多得多,但这两种物质中铁和硅的比例可能是可以比较的。
youdao
应用推荐
模块上移
模块下移
不移动