... 细菌区系 bacterial flora 细菌群体 bacterial population 细菌色素沉着 bacterial pigmentation ...
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R-factor bacterial population 因子细菌群
bacterial population density 细菌群体繁殖密度
general bacterial population 细菌总数 ; 一般细菌数
degraded-bacterial population 降解菌种群
bacterial population succession 种群演替规律
intestinal bacterial population 肠道菌群
In a bacterial population exposed to a killer drug, a few lucky individuals might have a genetic mutation that kept them alive.
当一个具有相当数量的细菌种群与一种杀菌剂“狭路相逢”时，只有少数幸运的细菌可以基因突变从而存活下来。
A competing theory is that a mutagenesis drug may eradicate a virus or bacterial population by reducing the fitness to negative values.
一个竞争性的理论是诱变药物通过降低对负面价值的适应性而根除病毒或细菌群体。
The soil nutrient index calculated from bacterial population indicated that the nutrient levels of the four grass-forest systems were very low, only between 0.003 and 0.014.
根据微生物数量计算的土壤营养指数表明，4种草林系统的营养级别都极低，土壤营养指数仅0.003~0.014。
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