试验结果表明：通过高浓度游离氨对硝化菌选择性抑制所获得的亚硝酸盐积累是不稳定的；
The experimental results showed that the nitrite accumulation obtained from selective inhibition of high concentration free ammonia to nitrifier was unstable.
当泌尿系统受到感染时，由于细菌还原硝酸盐生成亚硝酸盐，因此检测结果为阳性，常见于大肠埃希氏菌引起的泌尿系统感染。
When the urinary tract infection due to bacterial reduction of nitrate and nitrite generation so the test results were positive common in E. coli caused urinary tract infections.
介绍了亚硝酸盐在肉制品中的抑菌发色作用及其引发的食品安全性问题，并对降低肉制品中亚硝酸盐残留量的方法进行了综述。
Nitrite is an important food additive. The function and the security of nitrite in meat product were pointed out. And the methods to reduce the nitrite residue in meat products were summarized.
结果表明：利用曝气时间实时控制，在每个周期内氨氧化菌（AOB）降解氨氮质量大于亚硝酸盐氧化菌（NOB）降解亚硝态氮质量；AOB的净增数量大于NOB净增数目。
Analysis shows that more nitrogen is oxidized by ammonia oxidizing bacteria(AOB) than by nitrite oxidizing bacteria(NOB) with more growth of the AOB than the NOB in each cycle when using this method.
结果表明：利用曝气时间实时控制，在每个周期内氨氧化菌（AOB）降解氨氮质量大于亚硝酸盐氧化菌（NOB）降解亚硝态氮质量； AOB的净增数量大于NOB净增数目。
Analysis shows that more nitrogen is oxidized by ammonia oxidizing bacteria(AOB) than by nitrite oxidizing bacteria(NOB) with more growth of the AOB than the NOB in each cycle when using this method.
合适浓度的FA有助于亚硝酸盐的积累，但是，由于硝酸菌能够对FA产生的抑制作用逐渐适应，单纯靠增加FA浓度来实现硝酸盐的积累是不稳定的。
However, as nitrobacteria can gradually adapt the inhibition caused by FA, however, it is not stable enough to achieve nitrite accumulation merely depending on the increase of FA concentration.
合适浓度的FA有助于亚硝酸盐的积累，但是，由于硝酸菌能够对FA产生的抑制作用逐渐适应，单纯靠增加FA浓度来实现硝酸盐的积累是不稳定的。
However, as nitrobacteria can gradually adapt the inhibition caused by FA, however, it is not stable enough to achieve nitrite accumulation merely depending on the increase of FA concentration.
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