如果机体受到有害的微生物威胁时，比如病毒、癌细胞或者细菌，免疫系统就会发起免疫作用对抗这些入侵者。
When the body is under attack from harmful micro-organisms be it a virus, cancer, or bacteria the immune system will go into action to deal with the invaders.
文章列举了几种常用的抗微生物添加剂的类型以及使用方法、用量等，这对抗微生物添加剂的选择使用起到一定指导作用。
Among these methods, it is the most effective to add the anti-microbe additive to the metal-working fluids. Several kinds of common anti-microbe additives are listed, including the use method and...
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