试验设计

Based on the theory ang practice,hermetic seal form in puming test is introduced,It has great meaning to design and application of puming test .

在理论和实践的基础上，介绍了泵水在水压试验中的密封形式，对泵水设计和使用有一定的指导意义。

The results showed that the variation range of thermal stress is smaller and the thermal stress distribution is more homogeneous in the gradient coating.

还采用等离子喷涂方法制备了计算模型中设计的4种涂层方案的试样，并对试样进行了抗热震性能试验。

For improving mixing quality and efficiency,authors gave out definition of mixer rotation speed and its rationality criterion.With the help of theoretical analysis and experimental research,authors discussed the relations among mixer rotation speed with concrete homogeneousness,type of mixer,mixing power and mixing materials and revealed the rational range of mixing speed during mixer designing and using.

为了提高搅拌质量和效率，给出了搅拌机转速的定义和评判搅拌机转速合理与否的准则；采用理论分析和试验研究相结合的方法，分析了搅拌机转速与混凝土均匀度、搅拌装置类型、能耗和被搅拌材料的关系，给出了搅拌机设计和使用时合理转速的范围。

In optimum design theory, many results have been obtained under the assumption of exactly correct response and homoscedasticity.

经典最优设计理论假定响应曲面为真，也即试验者所选用的模型是完全正确的。

Based on the hydrokinetics study of jigging process, the free vibration equations of ideal fluid and actual flow vibration equations have been established. These equations are the theoretical foundation to set the operation parameters and air pressure of the jig. The similar criteria and their related equation of model jig have been deducted by actual flow vibration equation. These similar criteria can be used for parameter transformation between model jig and industrial jig. One set of single cell model jig with measuring system has been constructed in laboratory.

本文通过对跳汰过程的流体动力学研究，建立了跳汰机中理想流体的自由振动方程和实际水流的振动方程，为跳汰机工作制度及风源风压的确定提供了理论依据；利用跳汰机中实际水流的振动方程推导出了跳汰机模型试验的相似准数，建立了模化准则关系式，为工业跳汰机与实验室跳汰机之间的参数转换提供了理论依据；并设计建造了一套实验室单槽模型跳汰机及其实验检测系统，为深入开展跳汰理论的研究创造了条件。

The research contents and conclusions are as follows:(1) Based on drip irrigation emitter, the macro-scale and micro-scale hydromechanics theory are presented.

本文针对滴头内部流场研究领域存在的主要问题，以滴头流道设计与优化为研究对象，通过理论分析、数值模拟、试验验证等进行研究。

Under the characteristics of the raw materials of slag made of ilmenite in our country, we use sulfuric acid to produce titanium dioxide in this design, use orthogonal test analysis to investigate the acid soluble condition and make analytical discussion about the influencing factors of sulfuric acid rate.

针对我国钛铁矿制出的钛渣原料的特性，设计采用硫酸法生产钛白粉工艺。本实验是利用正交试验方法研究钛渣的酸溶性条件的实验，对其酸解率的影响因素进行了分析讨论。

The experiments made prove that the system works in stability and the image it transmits is clear.

试验结果表明：所设计的系统工作稳定可靠，传输图象清晰。

North Korea and Iran have long been collaborating on building missiles; the two are thought to have worked together in Iran to improve on basic North Korean missile designs at times when it has been impolitic for the North to test for itself.

朝鲜与伊朗在导弹研制方面的合作由来已久，外界认为在一些由朝鲜自行试验并不明智的时期，两国曾于伊朗境内，在朝鲜导弹的基本设计基础上携手努力，对技术加以改进。

In terms of the content, the research items include designing and testing six rows no-till wheat planter with whole profile modeling and include researching an opener of stagger double discs.

从内容上来看主要可分为六行整体仿形小麦免耕播种机的设计与试验研究和错开式双圆盘开沟器的探索研究。

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。