查询词典 epidemic

Objective To analyze characteristics of the dengue fever epidemic and thereby provide references for future prevention and control.

目的分析广州市2006年登革热疫情流行病学特征，为登革热预防控制工作的开展提供参考依据。

Methods The clinical data of 52 patients who were hospitalized during the 3 epidemic period of dengue fever from 1997 to 2002 were analysed.

方法对 1 997～ 2 0 0 2年该地区 3次登革热流行期间在某院住院的 5 2例患者临床资料进行分析。

The global pollution of the atmosphere with depleted uranium radioactive poison gas since 1991 is causing a global epidemic of chronic illnesses, which will contribute to extensive depopulation and ecological destruction.

全球污染大气层与贫化铀的放射性毒气自1991年以来，是导致全球流行的慢性疾病，这将有助於广泛的销毁和生态破坏。

It is well known that ultraviolet radiation induces derma cancer especially in white European and American with epidemic investigation reports.

流行病调查表明，紫外线辐射可能诱发皮肤癌，其中包括黑色素和非黑色素皮肤癌，特别在欧美白人中。

Methods Descriptive epidemic method and statistics method were used.

方法用描述流行病学方法和统计学方法。

On the basis of analyzing and summarizing the work of modern epidemic research, considering the impulsive vaccination this article constructs models with the form of impulsive differential equations.

在分析和总结当代流行病研究的基础上，本文考虑了实施脉冲疫苗策略对其的作用和影响，建立了脉冲微分方程形式的流行病传播数学模型。

Objective:To control diphtheria epidemic situation .

目的：控制白喉疫情。

In the prevalence of SARS, due to being short of Filtering-Facepiece Respirators, someone had suggested to reuse masks which are disinfected. Though the suggestion goes against the concept of disposability, while in the emergency of epidemic situation and limited resource, the suggestion may be accepted as an emergency measure.

92年SARS疫情高原期，由於抛弃式防尘口罩的供应量不足，有人提出将配戴过的口罩灭菌处理再重复使用的建议，虽然有违「抛弃式」防尘口罩的使用理念，但在疫情紧急且资源有限之际，或许此作法可作为紧急应变的手段。

Fall in swine flu cases may not signal an end of the epidemic, warns Professor Donaldson

流感病例数的减少不是大流行终止的信号，Donaldson教授警告

A padlocked chain holds the door shut on a foreclosed duplex as pedestrians walk by Friday, March 6, 2009 in the Bronx, NY Foreclosures are spreading by epidemic proportions, expanding beyond a handful of problem states and now affecting almost one in every eight American homeowners.

阿锁链持有一行人在星期五，2009年3月6日走在布朗克斯没收双工关上了门，纽约取消抵押品赎回权的进一步蔓延，流行的程度，超出了少数国家的问题，扩大影响，现在几乎每八个美国的房主一。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。