rod-row test

Got variation of friction of wellhead packing boxes through test measurement and analysis which apply basis for quantitative calculation of the efficiency of rod. Got efficient distribution of ground drive subsystems and underground subsystems.

通过试验测试与分析，找出了井口盘根盒摩擦阻力的变化规律，为定量计算杆柱效率奠定了基础；找出了地面传动各子系统及井下各子系统的效率分布规律。

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It is very important to know the dynamic distance between crankshaft neck and top surface of cylinder on assembly line of diesel engine. The purpose to test this dynamic distance is that relevant piston rod part can be chosen for assembly based on test results.

检测曲轴连杆颈到缸体顶面的动态距离的目的，是使相应的活塞连杆组件可根据检测结果被选择装配。

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The cross testing method applied to analyze and design wearing test of sucker rod and tube.

运用正交实验法对抽油杆与油管的磨损实验进行分析和设计.

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Thethe hot crimping process and its test methods for the vehicle thrust rod.

主要介绍汽车推力杆的热铆接工艺及其试验方法.

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Digital simulation study of positive period method for control rod calibration in a fast test reactor

正周期法刻度堆控制棒的数字模拟研究

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System Identification of the Hydraulic Servo Loading Test Apparatus of a Rod Pumping Unit

抽油机液压伺服加载试验装置的系统辨识

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The rigidity calculation of the closed thin-walled section rod structure of aircraft is carried out by using finite element method and the result tallies with the full-scale test value well.

利用有限元法对飞机闭合薄壁剖面杆结构进行刚度计算，其结果与全尺寸试验值吻合较好。

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Application of Three-Dimensional Theoretical Calibration Curve at Grey Rod-Turbine Load Test

三维理论刻度曲线在灰棒功率负荷曲线试验中的应用

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The slip between the threaded rod and concrete is little in the three-point bending test, indicating that the selected threaded rod and the torque applied to the nut before loading are acceptable in practical applications.

在加载过程中，螺杆与混凝土之间的相对滑移量很小，因此在拉拔试验中选择的螺杆以及施加于螺母的扭矩在实际工程中是适用的。

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Results of the test research on anchor pile with tie rod as retaining structure which was built in Beijing-Guangzhou railway is presented.

拉杆锚固桩墙是首次应用于京广铁路的新型支挡结构，具有明显的技术优越性和经济效益。

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