In this paper, a discrete stage - structured epidemical model is proposed and studied.
本文主要討論了離散的階段結構傳染病模型.
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OBJECTIVE To explore the administration measures of air condition usage in SARS epidemical period.
目的研究傳染性非典型肺炎流行期間綜合性醫院空調設施的管理.
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