It is necessary to drop the infection efficiency by over 85% through protection measures for reducing the basic reproduction rate below the critical level.
防护措施必须使感染效率下降85 %以上，才能使医院内传播的基本繁殖率降至临界值以下。
All parameters in the important concept-basic reproduction rate provide science evidence for malaria epidemiologic research and disease control and prevention.
其基本繁殖率这一重要概念中的各项参数，为疟疾的流行病学调查和制订预防、控制措施提供了依据。
Under the guidance of basic reproduction number, the negative effect can be alleviated and worms can be terminated by introducing a anti-virus system of high initial installation rate.
在基本再生数的指导下，通过提高防病毒系统预装率，能减弱机器更新带来的负面影响，并能有效抑制蠕虫的传播。
Under the guidance of basic reproduction number, the negative effect can be alleviated and worms can be terminated by introducing a anti-virus system of high initial installation rate.
在基本再生数的指导下，通过提高防病毒系统预装率，能减弱机器更新带来的负面影响，并能有效抑制蠕虫的传播。
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