试验设计

In this paper,the punch and press technology is applied to the experimental research and trial production of two typical kinds of centrifugal pumps.

文章结合2种典型离心泵产品的试制和试验研究，介绍了小型、微型离心泵的冲压结构设计、工艺设计及相关问题，为大批量生产小型、微型离心泵产品提供参考依据。

This article introduced the design and calculation of the artificial raining test facility — the device to check-out rainproof and leak-proof function of the automobile, elaborated guarantees the current capacity of each spraying nozzle even energy conversion balance and the main points of design .

介绍了汽车防雨密封性检测设备——人工淋雨试验装置的设计与计算，阐述了保证每个喷嘴流量均匀的能量转换平衡关系和设计要点。

The main content includes five parts: documentation retrieval, circuit preliminary design, determination of performance index, experimental test and revisional design.

主要内容包括：资料检索、电路初步设计、性能指标确定、试验测试、修改设计等四个环节。

The paper introduces aerodynamic configuration optimization design of lower Reynold number aeroplane using genetic algorithm,and makes prototypes to test feasibility and correctness of design.

试验结果表明该优化设计方法是十分有效的，可以用来对具有正常布局形式的飞机进行气动外形的优化设计。

The general situation and development of road roller at home and abroad is gave at the beginning of this thesis, including the different pressing mechanism of various rollers. It is analyzed that the useable range of various roller and their advantages and disadvantages. On the basis of model mechanism design and experiment of those self-moving vibrating pressing machine, it is reached the principle and program of a new type of pressing mechanism? double-frequency vibrating pressing machine.

本文首先介绍了国内外压实机械的概况和发展方向，以及各种压实机械的不同压实机理，分析了各压实机械的适用范围及其利弊，并且在自行式振动压实机样机的设计、性能试验的基础上，提出了多频振动压实理论，从而得出了一种新型压实机械—双频振动压实机及其设计原理和方案。

At first this text carries on deep research to the design and the realization of Focus TV network Session Layer. On this basis , then design to the test of the source code, and also write the testing code.And finally test the system.

本文首先对分众电视网络会话层协议的设计和实现进行了深入的研究，在此基础上，对源代码的测试进行设计并编写测试代码，最后，对系统进行了测试和试验。

It shows that the all physical mechanical index of small size spall satisfy the design demand except the grain composition.

通过对小粒径石料室内及现场试验研究，小粒径石料填筑混凝土面板坝堆石体的应力应变分析以及大坝变形观测分析，认为，小粒径石料的物理力学性能指标除了级配不满足设计规范外，其他指标均满足设计要求。

Founded on above theoretical and experimental results, the calculating model used for designing purpose of ACMR was proposed, and the structure's simplified designing formula was derived from its loading and buckling mechanism.

在上述理论与试验研究的基础上确定了这种结构的设计计算模型，从这种结构的受力及破坏机理出发推导了结构简化设计公式，并通过大量的二阶分析确定了公式中的所有系数。

Combining with the evolution of congestion control mechanisms, the existed technologies for congestion avoidance and recovery in IP networks are reviewed. The unsolved problems and hot spots in subdiscipline, such as TCP flow control, end to end flow control and enhanced mechanism in intermediate nodes, are summarized, and the advantages and disadvantages of all kinds of schemes for active queue management are emphatically analyzed. Also the paper presents and discusses the drawbacks of heuristic designin...

以拥塞控制机制演化的历史为线索，回顾了IP网络中已有的拥塞控制技术；总结了TCP流量控制、端到端流量控制和中间节点增强机制等各研究子方向中需要解决的问题；重点分析了主动队列管理这一热点领域中已有策略和算法的优缺点，并在此基础上，归纳和阐述了大多数算法所采用的启发式设计加仿真试验验证的模式存在的不足；提出了应用控制理论中的分析和设计方法研究网络拥塞控制的思路，并给出几个有意义的研究方向

This paper analyses and presents the design method of small discharge low specific speed submersible sewage pump.

探讨和提出了小流量低比转速潜水排污泵的设计方法，给出了 QW10 - 2 0 - 1.5型泵的设计实例和试验结果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。