XPS data reveal that the state and the content of nitrogen element in the surface layers correlate fairly with the catalytic activity.
XPS实验结果证明活性炭表面氮元素的电子结构及含量对催化氧化活性有显著的影响。
During the combustion process of coal, the nitrogen element in coal may turn to various oxides of nitrogen, thereby, resulting in ambient pollution.
煤中氮元素在煤燃烧过程中会转化为各种氮的氧化物，从而造成环境污染。
The experimental result also shows that the nitrogen element on the surface of contact black surface may be mainly in forms of amino group and nitro group.
此外，实验分析了接触法炭黑表面氮元素的组成，结果表明主要是以氨基和硝基的形式存在。
The alloy steels are named High nitrogen steels (HNS) if the nitrogen element percent in the ferrites is above 0.08%or the nitrogen percent is more than 0.4%in the austenite.
在合金钢中，如果铁素体中含有0.08%以上的氮元素或者奥氏体中含有0.4%以上的氮元素，则这种钢就称为高氮合金钢(HNS)。
The alloy steels are named High nitrogen steels (HNS) if the nitrogen element percent in the ferrites is above 0.08%or the nitrogen percent is more than 0.4%in the austenite.
在合金钢中，如果铁素体中含有0.08%以上的氮元素或者奥氏体中含有0.4%以上的氮元素，则这种钢就称为高氮合金钢(HNS)。
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