查询词典 prevention

To make paper more systematic and practical, this paper has first introduced the development history of CT equipment, then, elaborate construction of system and theworking principle of CT equipment systematically, including the property of X-ray, the absorption law of X-ray for materials, the reconstruction principle of CT image, the structure of software and hardware for CT equipment. Finally, with 2 CT systems that we used, statistic and analysis of all the malfunctions which have carried out in passed 10 years was given, and according to the systematic parts of fault located, classify the malfunctions, then elaborate their working principle one by one, analyze the regularity and the characteristic of each malfunction, and put forward specific prevention method and measure for the malfunction.

为了使论文更具系统性和实用性，本论文首先介绍了CT设备的发展史，然后比较系统地阐述CT设备的工作原理及系统结构，包括X射线的特性和物质对x射线的吸收规律，CT图像的重建原理，CT设备的软、硬件结构等，最后以我们所使用的2台CT为例，对10余年来所出现的故障进行了全面的统计分析，并按故障所处的系统部件进行分类，然后逐个阐述其工作原理，分析其故障的特点和规律，并就这些故障提出具体的预防方法和措施。

While the safest form of birth control remains to be abstinence, many choose to use other methods of prevention.

而最安全的形式节育有待禁欲，许多选择使用其他的预防方法。

Xu Yi said that the United Nations on the prevention of sexually transmitted diseases, made the "ABC" principle. A representative of Abstinency, which means "abstinence", to a total ban may be some difficulty, then step back and to "exercise restraint", in particular young people, we must avoid premature sex. B is Be faithful, which means "loyalty" and replaced by a modern language is to be monogamous or have a fixed partner, not a stranger to have sexual relations. C is the Condom, that is, condoms, this is the last step.

徐克沂表示，联合国对预防性病，提出了"ABC"的原则。A代表Abstinency，意为"禁欲"，要完全禁止可能有些难，那就退一步，做到"节制"，尤其是青少年，一定要避免过早发生性行为。B是Be faithful，意思是"忠诚"，换成现代语言就是要做到一夫一妻制或是有固定的性伴侣，不要和陌生人发生性关系。C就是Condom，即安全套，这是最后一步。

For the purpose of prevention from intestinal acariasis, the 150 species of Dermatophagoides farinae were separated from the storage associated with human closely.

为探讨粉螨所致的变应性疾病及其种类，我们用ELISA方法对1769人进行血清总IgE筛查，对可疑人群再进行血清粉螨特异性IgE复查。

According to the principle of efficiency, tort liability principles ought to minimize the accidents costs including the prevention cost, the accident loss, as well as the social costs.

效率原则要求侵权责任的归责原则应当能使预防成本、事故的损失成本以及社会成本的总和降到最低。

CNG filling station ; accident statistical analysis ; hazard analysis ; accident prevention

CNG加气站；事故统计分析；危险分析；事故预防

Subjects including Fire Engineering and Safety Engineering such as Fire Dynamics;Computational Fire Modelling for Building Design; Fire Engineering System; Legislation Aspects of Fire Safety Management; Design Considerations for Fire Safety Management; Safety Aspects in Construction; Occupational Health and Ergonomics; Accident Prevention,Hazard Assessment and Control; and Safety Management Systems and Safety Auditing should be offered.

论述了在香港提供消防与安全工程研究生教育的必要性，为了培养高质量人才，消防与安全工程高等教育的科目应当包括消防工程学和安全工程学，用于建筑设计的计算机火灾模拟，消防工程系统，火灾安全管理立法因素，用于火灾安全管理的设计事项，建造的安全因素，职业安全和人类工程学，事故防范、危害评估和控制，安全管理系统和安全审核。

Thereby gradually achieving accounting fraud prevention and treatment, so that the users of accounting information to be true and reliable accounting information.

从而逐步实现会计欺诈的预防和治理，使会计信息的使用者能够获得真实可靠的会计信息，同时也为经济的健康发展提供保障。

This paper on China's enterprises accounts receivable of risk prevention mechanism and measures to make a brief analysis.

本文就我国企业应收账款存在的风险、形成机理及防范措施进行简要分析。

Objective To explore the effect of nitric oxide on the pathogenesis and regulation of aconitase in anemia of chronic disease ; to provide experimental evidence for prevention and treatment of ACD.

目的探讨一氧化氮在慢性病贫血发病中的作用及对肝脏顺乌头酸酶活性的影响，为ACD的防治提供实验依据。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。