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A series of experiments were conducted to measure the variation of alignment during wheel jouncing; meanwhile, the influence of breaking point of steering trapezoid on alignment was also investigated.

通过试验综合考察了车轮跳动过程中车轮定位参数的变化,以及转向梯形断开点的垂直位置对车轮定位参数的影响。

Based on the detailed analyzing of impact system working process, the differential eguation of the system was got, and the mathematical model of the hydraulic impact system was builted, on basis of the mathematical model, By using of dynamic simulation function of Matlab ,the author has built the simulation model of the impact system based on software Simulink and run it after inputting the parameter ,the dynamic graph curve of impact velocity and presser of oil and position of knife rest were got, and the dynamic characteristic of impact system was analyzed,the simulated results are accorded with the fact,and some rational parameters can be found.

在对冲击式采煤机液压冲击系统工作过程进行详细分析的基础上,运用微分方程建模方法,建立了液压冲击系统的数学模型即系统的动态方程,并在该数学模型的基础上,采用Matlab中的Simulink动态仿真功能,建立了基于Simulink的冲击系统仿真模型,通过给定冲击式采煤机冲击系统的相关参数,对该系统进行仿真,得到了冲击式采煤机工作过程中冲击速度和油液压力以及刀架位移的变化曲线,进而对冲击系统的动态特性进行了分析,结果与实际情况较为吻合,并由此得出某些合理的参数。

Based on the magnetic field calculation some parameters of the sample motor such aselectromotive force with no load, leakage coefficient with no load and magnetictorque are calculated and influence on the parameters that is caused by the change ofthe structure of the sample motor is also discussed.

在电磁场计算的基础上,进行了电机空载反电势,空载漏磁系数,电磁转矩等相关参数的计算,讨论了横向磁通永磁同步电动机的结构变化对参数的影响。

The time series analysis presented in this paper may have a good value on research about how to make the best of time series remote sensed data and land cover classification. Distill 16 metrics from the SPOT4-VEGETATION/NDVI data and NOAA/ Ts data. The metics reflect the seasonal variation. We futher classify the reasearch area based on the 16 metrics.

通过时间序列分析方法,从SOPT4-VEGETATION/NDVI数据和NOAA/AVHRR提供的Ts数据提取16类季节性动态变化参数,并结合16类参数对研究区中混分类型进一步区分,最终得到理想的分类效果。

According to verifying 11 vacuating wells parameters such as structure and sand body thickness that have been predicted by model, it shows high coincidence rate of more than 90% to real datum. Moreover, the permeability variation in pilot site accords with water flooding situation. The computed parameters such as reserves, cumulative oil production of single well and area, water cut have small relative error of less than 2%, the matching accuracy degree is high.

通过11口抽稀井检验,模型预测的构造、砂厚等参数与实际情况相比,符合率在90%以上;试验区的渗透率变化与水淹状况也具有较好的一致性;储量、区块及单井累积产油量、含水等参数计算的相对误差均小于2.0%,拟合精度高。

Furthermore the effects of the working frequancy of the B mode scanner probes on the texture parameters of B mode tomograms are discussed.

目的 研究在不同频率探头的情况下,同一种组织的超声纹理参数的变化,探讨B超探头的工作频率对B超图像纹理参数数值的影响。

By rescaling the system,we obtain the Lorenz-Stenflo system with slow variation of the flow rotation. Based on Routh-Hurwitz criteria,the stabilities of the equilibria are analyzed and the bifurcation sets are sought to divide the parameter plane into different regions,corresponding to different types of the solutions.

通过对系统的重新标度,得到了气流旋转缓慢变化时的Lorenz-Stenflo系统;基于Routh-Hurwitz准则,分析了平衡点的稳定性问题,得到了参数平面上的分岔集,这些分岔集将参数平面划分为不同的区域,在各个不同的区域对应于系统不同的解。

During filtration, some parameters such as pressure drop over filter and the flux of liquid nitrogen were tested.

在试验中测试了过滤过程中压降变化和被过滤流体流量等参数,对试验结果进行了分析,得到了过滤器压降与工况参数之间的关系。

In this paper, we study effect of current density on throwing power and elongation, then investigate throwing power of high aspect ratio through-hole under different plating parameter, and research the reliability of PTH.

本文研究了不同电流密度下高厚径比镀通性及镀层延展性的变化趋势,在设备和药水条件基本固定的情况下,考察不同电镀参数组合对高厚径比通孔电镀的效果,并对不同参数下的孔铜作热应力测试对比。

At the evaluation parameters part, the article point out 20 suspension parameters to evaluate the vehicle independent suspension kinematics and elasticity kinematics characteristics, and give the exact definitions of these 20 parameters, at the same time the article endeavors to discuss the changeable characteristics of these parameters and their influences to the vehicle handling performance.

分别指出了反映了车轮定位、顺从转向、车身纵倾和侧倾、车轮回正性、转向轻便性和轮胎磨损等独立悬架运动学和弹性运动学特性的20个悬架参数指标,给出了它们的定义,并尽力阐述了这些参数对汽车操纵稳定性等重要性能的影响及其合理的变化趋势或范围。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。