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seven nitrogen-containing compounds 七个含氮化合物
basic nitrogen-containing compounds 碱性含氮化合物
nitrogen-containing organic compounds 有机含氮化合物
nitrogen-containing aromatic compounds 含氮芳烃
nitrogen-containing heterocyclic compounds 含氮杂环化合物
Nitrogen-containing benzoheterocyclic compounds 苯并含氮杂环化合物
compounds containing nitrogen 含氮有机物
organic compounds containing nitrogen 含氮有机物
nitrogen containing five-member heterocyclic compounds 含氮五元杂环
The gas is also produced naturally when bacteria in the soil and oceans break down nitrogen-containing compounds.
土壤及海洋中的细菌分解含氮化合物时，也天然地产生这种气体。
The nitrogen poisoning mechanism of FCC catalysts and the catalytic conversion of nitrogen-containing compounds are summarized.
从FCC催化剂碱氮中毒机理、含氮化合物的转化等角度分析了含氮化合物对催化裂化的不利影响。
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