一些概念如突变选择窗、突变预防浓度将被讨论到。

Concepts such as mutant selection window and mutant prevention concentration will be discussed.

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目的：研究不同药物浓度、不同化学结构的氟喹诺酮类药物对突变选择窗(MSW)内筛选的大肠埃希菌耐药突变体的靶位耐药基因的影响。

OBJECTIVE To investigate the effect of drug concentration, drug structure of fluoroquinolones on the resistant gene of Escherichia coli mutants selected in the mutant selection window (MSW).

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但是进化还需要反复复制和突变产生赖以选择的变异，从而给予适应性解决方案。

But evolution also requires repeated replication and mutation to generate the variation upon which selection works to give adaptive solutions.

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And it might occur to some of you that this seems to be an analogy with the Darwinian theory of natural selection where there's a random assortment of random mutations.

也许你们之中会有人觉得,这和达尔文的自然选择理论,看上去很相似,自然选择就是随机突变的随机分配。

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