The spatial distribution of element concentration values is expressed in the form of map.
元素浓度值的空间分布应以图的形式表示。
And the order of element concentration was first n, next K, then Ca, P, Mg, Fe, Mn, Zn and Cu in order.
在元素含量的顺序上是氮最高，钾次之，随后依次为钙、磷、镁、铁、锰、锌、铜。
The additives with higher element concentration can be also determined after being appropriately diluted.
元素浓度较高的添加剂经适当稀释后也可测定。
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