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A virus strain was isolated from the arthrosis of broiler chickens.The virus was shown to have spherical particles with isometric symmetry,no envelope,double deck capsids,with outer capsid of 75nm,inner one of 50nm in diameter by electron microscopy.The virus was not sensitive to aether,acid and heat.The virus could multiply on the chick embryo fibroblastcell,and could cause syncytial pathologic change with the appearance of cytoplasm inclusion bodies.The challenged chickens of one-day old by nasal,oral,intramuscular and pulvillus injection displayed obvious clinical symptom of severe arthritis and accompanied with pathological changes of malabsorption and necrosis.Meanwhile,four avian reovirus isolates CL,S1133,YH and YB were examined in the cross-neutralization test.

从临床患病鸡关节病料中分离到一株病毒，在电镜下观察到病毒粒子无囊膜，有双层衣壳，外衣壳直径约75nm，内核约50nm；分离病毒株对酸、热有较强的抵抗力，对乙醚不敏感；病毒感染鸡胚成纤维细胞上能产生以融合细胞为特征的CPE；爪垫接种1日龄雏鸡表现出明显的病毒性关节炎临床症状，并伴有吸收障碍型和坏死型的病理变化；血清中和交叉试验表明，该病毒分离株与国内的2株番鸭源呼肠孤病毒分离株和国外S1133呈不同程度的交叉反应。

The signal drop at globus pallidus and putamen on two sequences were evaluated by two neuroradiolgists who did not know the clinical features of the patients. A hypointensity in the dorsolateral putamen equal to or lower than that in globus pallidus was taken into account as the main clue to differentiate the two diseases.

两名放射科专业医师在不知道患者临床诊断的情况下评价两个序列上苍白球和壳核的信号变化，背外侧壳核的信号等于或低于苍白球的信号作为两种疾病影像鉴别诊断的主要指标。

Construction methods of large-span reticulated cylindrical shell are studied in this paper, based on variety of existing spacial structure construction methods. A new type of construction method that the structure is formed integrally by sliding support is bring forward in literature [1]. Construction process run-after computation is conducted by Ansys program, and a new type of hinged joint is obtained.

本文在概括总结了现有的各种空间结构施工方法的基础上，着重研究了大跨度柱面网壳结构的施工技术，对文献[1]提出的新施工方法——柱面网壳支座水平滑移结构整体成形施工法进行了施工全过程的跟踪模拟和结构内力分析，给出了具体施工实施方法，并提出了一种可单自由度转动的新型铰接节点。

scatheless measurement ; numerical simulation ; helium pressure

利用氦气在不同压力下具有不同的状态参数和热力参数，可以通过传热方法测量包壳内的氦气压力。1试验装置和研究方法如图1，把燃料棒浸入到一个高温的池子内，热量会在燃料棒内传递开来，通过测量管壁外面不同位置出的壁面温度，就可以推测到包壳内的氦气压力

The structures of cylindrical shell and spherical shell are basic components and widely used in industrial fields.

圆柱壳、球壳结构是工程领域中普遍应用的基本构件，研究该类壳体结构流固耦合辐射声场，对国防武器装备隐身技术的进步、工程结构的噪声控制及现代机电产品的低噪声优化设计等都具有重要的理论价值和现实意义。

Seismic responses of long-span single-layer and double-layer reticulated spherical shell under wave excitations and uniform excitation s are studied.

本文考虑了地震波的行波效应，采用不同的视波速，对单双层球面网壳结构在行波激励下的反应分别进行了计算分析，并与在一致激励下的地震反应进行对比，考察了两者之间的差异，深入分析了大跨度单双层球面网壳结构在行波激励下的地震反应规律，得出了一些有益于工程实际的重要结论。

The company has experienced a number of watches and clocks, surface design, development and production talent, there is from the casting, watchcase into table production to the production of all production processes and equipment, can be independent from watchcase production, production to export table into the various aspect, the production of products to meet the various needs of the market., the current U.S. product categories are: all kinds of couple tables, cartoon form, chain belt forms and electronic forms, as well as the middle-grade nail UP really Pui, false bay, corrosion surface , products are exported to the United States, Europe, Australia, the Middle East, Southeast Asia and other countries and regions.

公司拥有一批经验丰富的钟表，表面设计，开发及生产人才，有从铸造，表壳生产到成表生产的全部生产流程及设备，能独立完成从表壳生产，成表生产到出口的各个环节，生产的产品能满足各种市场的需求。，目前我们的产品类别有：各种情侣表，卡通表，链带表及电子表以及中高档UP钉、真贝、假贝、腐蚀表面等，产品远销美国，欧洲，澳大利亚，中东，东南亚等国家和地区。

Due to their narrow niches, short lifecycle and being sensitive to environmental changes, the abundant testate amoebae fossils in sediments might provide high-resolution paleoenvironmental information.

有壳变形虫是一类广泛分布在淡水潮湿环境中的根足纲原生动物，具有较窄的生态幅、较短的生命周期，对环境变化敏感等特点，因此沉积物中保存的有壳变形虫化石可以提供高分辨率的环境信息。

Due to their narrow niches, short lifecycle and being sensitive to environmental changes, the abundant testate amoebae fossils in sediments might provide highresolution paleoenvironmental information.

有壳变形虫是一类广泛分布在淡水潮湿环境中的根足纲原生动物，具有较窄的生态幅、较短的生命周期，对环境变化敏感等特点，因此沉积物中保存的有壳变形虫化石可以提供高分辨率的环境信息。

Based on examinations of type specimens housed at PE, lectotypes for five names of Chinese taxa in Fagaceae, Papaveraceae, Capparidaceae and Cruciferae are here designated under Article 8.1, 9.9, 9.10 and 37.2, Recommendation 9A.2 and 9A.3 of the International Code of Botanical Nomenclature, because the types were respectively indicated by reference to a gathering that consists of more than one specimen, or more than one gathering were simultaneously designated, without indicating the type in the protologue.

摘要查阅保存于中国科学院植物研究所标本馆的壳斗科、罂粟科、山柑科和十字花科植物的模式标本时，发现有5个植物名称的模式均多于1份标本，或同时引证1号以上的标本而没指定模式，根据《国际植物命名法规》规则8.1、9.9、9.10和37.2，以及辅则9A.2和9A.3的精神，对这些名称做出后选模式指定。关键词壳斗科；罂粟科；山柑科；十字花科；后选模式

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。