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.
当有外加硝酸盐还原菌时，硝酸盐的抑制时间明显增强，低浓度的硝酸盐（0.01%）就可以抑制SRB的生长达8天之久。
When NRB-HT was added simultaneously, the inhibition period was prolonged obviously. Nitrate of 0.01%could inhibit the growth of SRB-HT as long as 8 days.
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