1.The distribution of the heavy mental elements (HMEs) in eluvial horizons, illuvial horizons and parent material horizons of 26 agricultural soil profiles in Hainan Island was studied.
2.The article expounds the application sphere of some elements in analysing food by using the method of atomical spectrum assimilation, and expounds the making of samples by offering examples.
3.There are volcanicity and kinds of metalliferous minerals formed by rush of current on the Mars,which is superior to the metallic element spread in the terram on the Moon.