The rest are all hitch-hikers, mainly harmless bacteria that have evolved with us.
其它的都是搭便车的生物，主要是一些与我们共生的无害细菌。
Put simply, probiotics are harmless bacteria that help protect the human body from harmful bacteria.
简单地说，益生素是无害的细菌，能保护人体免遭有害细菌的侵袭。
Scientists at the University of Birmingham have shown that harmless bacteria that feeds on sugar produces hydrogen gas.
伯明翰大学的科学家发现，以糖为生的无害细菌能产生氢气。
Researchers at the Cork Cancer Research Centre (CCRC) have found that harmless bacteria from probiotic yogurt (bifidobacteria) naturally travels through the body and can grow inside tumors.
科克癌症研究中心(CCRC)的研究人员发现，酸奶中的益生菌(双歧杆菌)可以天然地通过人体并且在肿瘤中生长。
So Barbeito and three volunteers grew their own beards for 73 days, then sprayed them with harmless bacteria and demonstrated that it was harder to wash the germs out of a beard than off clean skin.
所以Barbeito和三位志愿者做了如下实验：他们连续73天不刮胡子，然后在胡子上喷洒一种无害的细菌，并证实在这种情况下，细菌比没有胡子的时候更难以清洗。
The bacteria are harmless to humans.
这些细菌对人无害。
An unknown percentage of the oil would have been eaten by bacteria, essentially rendering the compounds harmless and incorporating them into the food chain.
将被细菌吃掉的原油所占比重成为一个未知数。细菌吃石油本质上是将无害化合物提炼出来并将其纳入食物链。
E. coli bacteria naturally live in the intestines of humans and many animals. Most kinds of E. coli are harmless but some can make people sick.
大肠杆菌通常存在于人类或许多动物的肠道内，多数的大肠杆菌是无害的，但部分大肠杆菌能够使人致病。
Biological preparations composed either of a harmless variety of a disease-causing agent such as a virus or bacteria, or of proteins derived from such an agent.
由无害的多种致病介质如病毒或细菌或来自这些介质的蛋白质组成的生物制品。
Then anaerobic bacteria take that nitrate and turn it into harmless nitrogen gas.
最后厌氧菌将硝酸盐转化成无害的气体氮。
There are hundreds of strains of E. coli bacteria, and most of them are harmless. At the worst, they cause a few days of digestive discomfort.
大肠杆菌有数百种菌株，但大多数都是无害的。
These creatures, now called anammox bacteria, transform caustic and hazardous ammonium into dinitrogen, the harmless nitrogen gas that makes up 78% of the air we breathe.
这些微生物被命名为anammox，它可以把碱和有害的氨转化成氮气，无害的氮气是我们呼吸的空气的主要组成成分，占到了空气的78%。
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.
虽然大多数大肠杆菌无害，但肠出血性大肠杆菌(EHEC)可以产生破坏血细胞和肾脏的志贺毒素或维罗毒素。
Though some bacteria Can cause food poisoning and infectious diseases in humans, most are harmless and many are beneficial.
虽然一些细菌会引起食物中毒或传染疾病给人类，但大多数细菌对人类无害，而其中有许多反而有益。
Unique nanotechnology, the Cramer diamond stone density without gap, bacteria have no place to hide, direct contact with food, non-toxic harmless.
独有的纳米技术，使得克拉美钻石英石致密无隙，细菌无处藏身，可与食物直接接触，无毒无害。
The nature of lactic acid bacteria can produce lactic acid, has been used in the manufacture of cheese and yogurt, harmless to the human body.
自然界的乳酸菌可制造乳酸，一直用于制造奶酪和酸奶，对人体无害。
The nature of lactic acid bacteria can produce lactic acid, has been used in the manufacture of cheese and yogurt, harmless to the human body.
自然界的乳酸菌可制造乳酸，一直用于制造奶酪和酸奶，对人体无害。
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