比较原理

These reviews include three search fields: the equipment of electromagnetic riveting,the process of electromagnetic riveting and the deformation mechanism of adiabatic shear : the low voltage electromagnetic riveter is in the works and the simulation of electromagnetic riveting will be more and more importance in the analysis.

从原理出发，对国内外电磁铆接设备、工艺及绝热剪切变形机理的研究进行了分析比较，指出电磁铆接设备将走低电压发展的道路，数值模拟将在今后的研究中发挥越来越重要的作用，最后对该领域的发展趋势提出自己的观点。

Calculation method of buried depth is to put forward based on the analysis of its influencing factors including roadbed's influence.

文章介绍了水平定向钻施工中各种导向技术的基本原理和各自的特点，并对其适用性进行了比较。

A gold immunostrip for rapid detection of Chloramphenicol was developed based on competitive immunochromatographic assay. And the mixtures of saccharose, dextran, polyvinylpyrrolidone, polyethylene glycol, bovine serum albumin, tween20 and antiseptic, etc, as protectants were designed and prepared. Different part of the strip was treated with the protectants, and then thermo-stability of the strip was investigated with storage at 4℃, 37℃ and 60℃.

根据竞争性金免疫层析法原理，研制了氯霉素速测金标试纸条，并选择了蔗糖、葡聚糖、聚乙烯吡咯烷酮、聚乙二醇、牛血清蛋白、表面活性剂Tween20、防腐剂等物质，采用经验尝试法配制了一系列的配方，对试纸条不同部位进行处理，通过37℃和60℃下热稳定性测试，并与未经稳定剂处理的对照进行比较，筛选出适宜的试纸条保护剂。

First, the paper introduced the principle of the method,discussed the influence of sample interval of relaxation spectrum in the method and compared the method's result with the result from core mercury injection.

首先 ，介绍了基于梭状函数抽样的高分辨率弛豫谱反演方法的原理，并用该方法对岩心核磁数据进行了弛豫谱分解，讨论了弛豫谱抽样间隔对该方法的影响；其次，高分辨率弛豫反演结果和压汞结果的比较证明了弛豫谱反演方法的高分辨率优点。

Using the principle and methods of Cladistics to systematically study the comparative and evolutionary morphology of sawfly larvae of Hymenoptera; to reconstruct the phylogeny of sawflies and to probe on the co- evolution between sawflies and their host plants; further more to collect enemies of some important sawfly pests.

应用支序系统学原理和方法，系统深入地研究膜翅目叶蜂类幼期比较和进化形态学，推断和重建叶蜂系统演化关系，探讨叶蜂类昆虫与寄主植物之间协同进化关系，初步筛选重要叶蜂害虫的天敌昆虫。

Description of seed filling algorithm and the scan line fill algorithm algorithms to compare the advantages and disadvantages of these two algorithms.

详细说明：描述种子填充算法和扫描线填充算法的算法原理，比较这两种算法的优缺点。

Cost-effectiveness of close sickroom is lower. Conclusion:Hospitalization in close sickroom is better than that in open sickroom for initially diagnosed schizophrene.Key words Cost-effectiveness analysis;Initially diagnosed schizophrene;Open and close sickroom

通过运用临床经济学的原理［2］比较两种不同住院方式治疗首诊精神分裂症的疗效和住院费用，并进行成本-效果分析（Cost-effectiveness analysis，CEA），旨在为临床治疗精神分裂症患者选择有效、经济的住院方式提供参考。

Because of high speed and large amount of services, protection becomes very important for SDH system design.

分析了四种典型自愈环的结构，保护原理，建立了其概率模型，分析比较了它们的网络可靠性及链路可靠性随故障概率及节点数变化的情况。

For image denoising, the basic principles and all kinds of shrinkage functions selection and evaluation are discussed.

讨论了小波图像去噪的原理和各种阈值方法的选取与评估，并对小波系数的统计模型进行了分析比较。

This article introduces the technology of the soft starter for belt conveyor,and compares the working principles,advantages and disadvantages of velocity modulated hydraulic coupler ,liquid sliminess soft starter,CST,frequency conversion velocity modulation soft starter,silicon-controlled velocity modulation soft starter.

介绍了带式输送机软起动技术现状，比较了调速型液力偶合器、液体粘性软起动、CST，可控硅调压调速、变频调速技术等软起动技术的工作原理及优、缺点，展望了其发展趋势，对带式输送机系统中软起动装置的选用有一定的参考价值。

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。