epidemical造句
2024年06月18日 13:29:02
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.
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(yī)院空調(diào)設施的管理.