A method is found out to determine the total coli-group by the five fermentation tubes.
通过实验，摸索出测定总大肠菌群的一种五管发酵法。
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While most E.coli bacteria are harmless, a group called enterohaemorrhagic E. coli (EHEC) can produce toxins, known as Shiga toxins or verotoxins, which damage blood cells and the kidneys.
The beneficial bacterium multiply advantage bacterium group, which may restrain or kill bacillus coli and germs' breeding to reach the effect of preventing disease.