epidemical的中文翻译是什么意思

In this paper, a discrete stage - structured epidemical model is proposed and studied.

本文主要讨论了离散的阶段结构传染病模型.

OBJECTIVE To explore the administration measures of air condition usage in SARS epidemical period.

目的研究传染性非典型肺炎流行期间综合性医院空调设施的管理.