number of fecal coliforms 粪大肠菌群数
E. coli and fecal streptococci are subsets of fecal coliforms, which are a subset of the total coliforms.
大肠埃希氏菌或链球菌是粪大肠菌群的一种，而粪大肠菌群是总大肠菌群的一种。
The quality controlling equipment in lab, medium and accuracy test during the bacteriology experiment were analyzed, and then the key problems in the fecal coliforms experiment were discussed.
对在粪大肠菌群实验过程中涉及到的实验室质控设备、培养基、精密度检验等内容进行了分析，并对实验过程中的关键问题进行了阐述。
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