Water vapor in the air combines with nitrogen and forms nitric acid.
水汽在空气中用氮和表格氮的酸联合。
A modern YZ-1 type inhibitor of nitric oxides is investigated, which can be used for brass articles in bright acid dipping to inhibit formation of nitrogen oxides.
本文介绍了一种新型的YZ - 1型氮氧化物抑制剂，可用于铜件酸洗抛光时抑制氮氧化物的生成。
The method for removing nitrogen oxides in the effluent gas from manufacturing nitric acid by using acidic urea solution as an absorbent to absorb the nitrogen oxides is introduced.
介绍用酸性尿素溶液作吸收剂， 吸收硝酸尾气中氮氧化物的净化方法。
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