试验设计

This paper presented frictional resitance test method of prestressed duct and anchor about 50m box girder of the hangzhou bay bridge.By analysisng the data,the actual frictional resisrance was obtained and compared with design and construetion standard.

在介绍杭州湾跨海大桥Ⅹ合同50m箱梁预应力管道摩阻试验、锚具摩阻试验方案和方法的基础上，对测试数据进行了分析、处理，并与设计和施工规范要求进行了对比分析。

To get the best drill auger, a set of model drill auger and related test device were designed and manufactured. By choosing appropriate material as boring medium, a series of model test of drill auger boring into cement soil were done to study the impact of pattern of the drill auger and the screw-pitch on the holeforming torque.

为得到最优的螺旋挤扩钻头型式，设计加工了不同型式的模型钻头及相关试验装置，并选择合适的材料作为钻入介质，通过不同型式模型钻头的钻入试验，研究了钻头螺距、螺纹形状等参数对钻头成孔扭矩的影响。

Based on the method of finite element orthogonal test,this paper designs the experimental scheme and gives numerical model of top coal drawing with non chain pillar entry protection .

根据有限元正交试验法，设计了有限元正交试验方案，建立了放顶煤无煤柱护巷的数值模型；通过对计算结果分析，得出放顶煤无煤柱开采沿空巷道的布置参数和支护形式，可为放顶煤无煤柱护巷提供理论依

The connections studied herein were top-and-seat angle connection, including minor axis web connection and two type new connections designed according to the force-displacement character of minor axis joints.

进行了三种类型的梁柱弱轴角钢连接共9个试件的单调加载试验，其中两类试验试件采用本文根据梁柱弱轴连接节点受力变形特点设计的新型连接形式。

In order to optimize parameters of threshing system of corn thresher with different speeds threshing parts, and minimize mechanical damage of corn seeds in the course of threshing, an experiment of second order regression orthogonal rotation design was carried out with rotating speed of straight roller, feeding quantity and kernel water contents as influence factors and broken rate of kernel as major criterion.

为优化差速式玉米种子脱粒机脱粒系统的有关参数，进而降低玉米种子在脱粒过程中的损伤，该文采用二次回归正交旋转组合设计的方法，以籽粒破碎率为主要性能指标，选取直辊转速、喂入量、籽粒含水率为试验因素，对差速式玉米种子脱粒机进行了性能试验。

Using the methods and software of this thesis some flow regulations, design principles and criteria are developed to give more accurate and credible aerodynamic coefficients of ailerons.

模拟了舵面在不同缝隙、不同舵面偏角及来流迎角下的复杂流动问题；结合对舵面气动特性的风洞试验结果的分析，归纳总结出舵面铰链力矩随缝隙、舵面偏角、来流迎角、马赫数的变化规律，探讨了如何将数值计算与风洞试验相结合为飞机设计提供准确、可信的舵面气动特性参数的方法。

The data acquisition system simulated the function of data acquisition that ship model tank did. The simulation test system estimated the real-ship resistance, ship resistance estimation is an important content to determine its speed, and analyze the quality during the early stage. This simulation system mainly estimated the ship resistance with Ayre method and navy constant method, then compare the result with ship model test.

其中，数据采集系统模拟船模试验水池数据采集功能而进行模拟仿真，模拟试验系统主要进行实船船舶阻力估算模拟，船舶阻力估算是船舶方案设计初期的一项重要内容，以确定船的航速，便于初步分析比较各种方案的优劣，系统主要针对船舶总阻力估算方法中常用的爱尔法和海军常数法进行模拟仿真。

In this research,Young buddings of Clone SCATC 7-33-97 were used as plant materials,adopting to the quadratic general rotary unitized design,with nitrogen,phosphor,potassium,magnesium these four factors with 5 levels(1/2 implement) for fertilizer experiment.

本研究以橡胶幼苗无性系热研7-33-97为试验材料，采用二次回归通用旋转设计安排了氮、磷、钾、镁肥四因素5水平(1/2实施)的肥料试验。

The paper takes Breakingfruit Chinkapin fibre and other wood fiber compound manufacturing MDF's Processing-parameter for research object. Use the diagonal intersection trial law designing the trial scheme. The focal point is studied the major Processing-parameter of Breakingfruit Chinkapin with other woods to manufacture MDF. And internal bond strength, modulus of rupture, modulus of elasticity, formaldehyde emission content, thickness expansion rate of water absorbing and density of MDF are analysed. From Variance, Range and other methods seek the better Processing-parameter.

本文以黎蒴栲材热磨纤维与其他树种热磨纤维复合制造MDF工艺为研究对象，采用正交试验法设计试验方案，并根据国家标准规定的测试方法对压制成的MDF的内结合强度、静曲强度、静曲弹性模量、甲醛释放量、吸水厚度膨胀率等多项性能进行分析，利用方差、极差等分析手段寻找合理的制造工艺参数。

Based on platform structural design parameters, simulation research of load coupling among channels for fighting simulation Stewart platform was achieved by using load couping evaluation indexes, and the experimental validation of fighting simulation Stewart platform test prototype was done, which proved the validity and rationality of the load coupling evaluation indexes.

基于平台结构设计参数，运用负载交联耦合评价指标，对飞行模拟Stewart平台通道间负载交联耦合进行了仿真研究，并用飞行模拟Stewart平台试验样机进行了试验验证，证明了负载交联辐合评价指标的有效性和合理性。

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。