查询词典 virus

Perina nuda virus ; infectious flacherie virus ; the viral silkworm disease ; cell line ; pathogen

指导教授王重雄；中文关键字榕树透翅毒蛾病毒；软化症病毒；家蚕病毒病；细胞株；病原体

Direct avian-human H5N1 virus transmission is the predominant means of human infection, through direct contact with infected birds and virus-contaminated fomites or with fertilizer containing poultry feces.

禽流感病毒经过不断变异后有可能突破种属屏障而传播给哺乳动物及人类，从而进一步在病毒和宿主的多种因素作用下导致宿主发病乃至死亡。

For constructing strong combined promoter to enhance the foreign gene expression in Fowlpox virus vector, four oligonucleotides were synthesized according to the essential structure of the vaccinia virus nature promoter P7.5 and were used for generating early and late promoters.

要提高外源基因在鸡痘病毒载体的表达量，必须使用强启动子来控制表达。为构建较强的启动子组合，根据痘苗病毒天然启动子P7.5的结构，人工合成4条寡核苷酸，形成一个早期启动子和一个晚期启动子，其首尾可相互连接。

Objective To prepare, purify and preliminarily identify the recombinant fowl pox virus expressing infectious laryngotracheitis virus glycoprotein D gene.

目的 制备传染性喉气管炎病毒gD基因重组禽痘病毒，并进行纯化及初步鉴定。

Objective: In order to investigate whether the recombinant adeno-associated virus -mediated foreign genes, LacZ/hVEGF, could pass the blood brain barrier by intra-carotid artery delivery or not and to investigate whether the foreign genes could be expressed in vivo in ischemic brain of the focal embolic stroke rats or not, a high titer and completely adenovirus free recombinant adeno-associated virus vector was constructed and studied.

目的：为了检测腺相关病毒载体携带的人类血管内皮因子基因能否通过血脑屏障及能否在脑组织中表达其基因产物，我们构建了一种新型、高滴度、无腺病毒污染的rAAV携带的报告基因和hVEGF基因分别经颈动脉对自体血栓局部脑卒中大鼠进行了研究。

The wood of 侯 gold says, the " small three 阳s" just expresses the virus replication level lower, virus template still frowardly the 贮 exsits cell nucleus inside, once the term is in keeping with and then can enter to make duplicate afresh the appearance changes into the " big three 阳s".

侯金林说，"小三阳"只是表明病毒复制水平较低，病毒模板仍顽固地贮存在细胞核内，一旦条件适合就可以重新进入复制状态变为"大三阳"。

As of late 2005, three species of fruit bat have been identified as carrying the virus but not showing disease symptoms, and they are now believed to be the natural host species, or reservoir, of the virus.

在2005年后期，三种狐蝠被认为是自然寄主，或此病毒的携带者。

Canine distemper, caused by canine distemper virus which belongs to the Morbillivirusgenus of the Paramyxoviridae virus family, is a acute and highly contagious disease causing considerabledamages to the fur animal farming industry, threatening wildlife conservation and zoo animal.

犬瘟热(Canine distemper，CD)系由副粘病毒科麻疹病毒属的犬瘟热病毒引起的一种急性、热性、高度接触性的传染病。

Hepatitis C virus ; genotype ; genic ; virus ; dynamic change

丙型肝炎病毒；基因型；基因；病毒准种；动态变化

The overall, the nuclear glucoside the kind of medicine characteristic is may suppress the virus directly, can be very rapid, control powerfully the virus.

总体来看，核苷类药物的特点是可以直接抑制病毒，能够很迅速、强有力地把病毒控制住。

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。