查询词典 dynamic condition

On the basis of the introduction of the working principle of dynamic password card,the scheme of realizing dynamic password card by embedded systems is studied. And the realization method and key technological...

在介绍动态口令卡工作原理的基础上，研究了用嵌入式系统实现动态口令卡的实施方案，并进一步介绍了该方案的硬件、软件的实现方法及技术难点。

In this paper the basic principle of dynamic simulation with PSS/E is presented; the effectiveness and adaptability of flexible HVDC power transmission model are analyzed, and on the basis of actual power system the quasi steady-state VSC-HVDC dynamic model VSCDCT is simulated. Simulation results show that it is available to apply PSS/E in transient stability analysis of practical large-scale AD/DC power system.

介绍了PSS/E动态仿真的基本原理；分析了柔性直流输电模型VSCDCT的有效性和适用性，并基于实际系统对准稳态直流动态模型VSCDCT进行了仿真研究，仿真结果表明 PSS/E直流模型能够满足大规模交/直流系统仿真的要求。

Introducing the method that analyzes the dynamic stability of airplanes in the aviation, the small perturbation non-dimensional linearized motional equations were develped in detail based on the small perturbation theory and quasi-constant assumption, the distinguishing rule and quality judgement criteria of dynamic stability are set up in this section.

引入航空中飞机运动稳定性方程的处理方法，运用小扰动理论，详细推导了HYSWAS的小扰动无因次线化运动方程及其特征方程，提出了HYSWAS运动稳定性判别准则以及运动稳定性品质的评判指标

Lead Ph Basic load rating Permissible load F P Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm kN kN kN kg kg/m 4 4.2 7.6 0.13 0.8 Type using standard material Standard grease Standard seal Iron-based AFB-LF RR...Lead Ph Basic load rating Permissible load F P Nut mass Shaft mass Dynamic rating Ca Static rating C 0 a mm kN kN kN kg kg/m 2 1.5 2.9 0.045 0.47 Type using standard material Standard grease Standard seal Iron-based AFB-LF RR...

载荷钢球圈列数 DN值预压预压方法导轨型号 3列 1.00圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无 EK4， FK4 轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性无单一螺帽右螺纹无 35.0 螺纹条数防尘措施防尘罩形式 W清洁环与QZ润滑装置配用 1 无。。。

The soil moisture characteristics, dynamic variation and spatial variation in the fields for 4 soils in the loess area of Gansu province, maximum hygroscopicity, wilting point moisture and water holding capacity were studied. The dynamic variation of soil moisture shows "two peaks -two valleys" type.

对甘肃黄土地区4个土类的土壤水分特征、动态及空间变异规律，以及最大吸湿水、凋萎湿度和持水性能的研究表明，土壤水分动态变异规律呈&双峰－双谷&型，据此在时序上可划分为5个明显的时期：（1）春季增失墒交替期；（2）春夏严重失墒期；（3）夏秋墒情恢复期；（4）秋冬缓慢失墒期；（5）冬季墒情稳定期。

Compared to Dynamic Stability Control, Dynamic Traction Control provides rear wheel vehicles with greater propulsion.

与动态稳定性控制系统相比，动态牵引力控制系统为后轮驱动的汽车提供更强大的推动力。

To solve the exsisting problems in the realization of the LFM/CW radar, the thesis presents a technique for dynamically measuring the LFM/CW signals, which can accomplish the dynamic measurements of FM linearity, FM bandwidth and FM slop of the transmitted signals of LFM/CW radars. This technique creates an effective and accurate means of judging the performance of LFMCW radars. The linearity-correction techniques presented in the thesis successfully make the linearity of the transmitted signals of an actual LFM/CW radar reduce from approximately 25% to 0. 1%(or r. m. s linearity of 0.04%), better than the best results (0.22%) obtained by foreign researchers with complex linearization closed-loop in the same kind of LFM/CW radars, according to the published literatures during the last decade. In order to improve the capability of the real-time processing and range-cells management of LFM/CW radars, the principle of equivalent mixing by lacking-sampling process of band-pass real signals is proposed based on the well-proved improvedversion of sampling theorem of band-pass real signals. This principle is used to configure the range-segments processing of the beat signals of an actual LFM/CW radar. The techniques of system-background interference suppression and the beat signal's dynamic range suppression are proposed, and are realized in an actual LFM/CW radar to demonstrate their effectiveness.

针对线性调频连续波雷达实现中急待解决的技术问题，文中提出并验证了线性调频连续波信号的综合动态测试技术，可以完成对线性调频连续波雷达发射信号的扫频线性度、扫频带宽和扫频斜率的综合动态测试，为衡量实际线性调频连续波雷达的系统性能创立了精确有效的测试手段；文中建立的非实时闭环动态校正技术使一部实际的线性调频连续波雷达的发射信号（时带积3×10〓）的扫频线性度从25%改善为0.1%（方均根线性度0.04%），优于国外已公布的80年代同类雷达中采用复杂的实时闭环动态校正环路所获得的实际结果（0.22%）；为了改善线性调频连续波雷达的实时性和分辨单元数处理能力，文中发展完善了实带通信号的采样定理并给予了严格证明，并在此基础上提出了欠采样等效混频原理，将其应用于实际线性调频连续波雷达的距离分段处理中；针对线性调频连续波雷达中系统背景干扰和回波动态范围问题，创立了系统背景综合抑制技术和频域动态范围压缩技术，并将它应用于实孔线性调频连续波雷达系统中，显示出它们的有效性。

The main work of this paper: Firstly, Basing on the summarization and analysis of the walking mechanism, Parallel drive five-bar mechanism is applied for walking mechanism. And then the characteristic of the trail and positive kinematics as well as reverse kinematics are discussed. Secondly, the model of walking mechanism is established according to Parallel drive five-bar mechanism, and then a figure planning is designed for the foot-end trail. The characteristics of the parallel drive are emphasized to research in this paragraph by the method of insert value. At last, the simulation is performed in the ADAMS to compare the real result to the theoretical value. Thirdly, a sealed structure of a Quadruped Walking Robot is designed and established. The whole control system, including motor, sensor and control circuit, is sealed in the robot. Walking is derived in the way of the shaft driving and the dynamic torque sensor is used to the surrounding conditions of the robot's foot-end to be the foundation of the robot's control. At last, the applying principle of the dynamic torque sensor is researched in detail basing on the traditional sensor of the walking robot. Moreover, the principle is divided into several sorts to discuss. Finally, simulation and verification of the monitor principle are come through in the Mechanism of the Pro/Engineer.

论文的主要工作有：在对传统步行机构总结分析的基础上，提出将平面并联五杆机构应用于四足步行机器人的腿部结构，并对其轨迹特性、正运动学、逆运动学特性做了详细计算分析；依据平面并联五杆机构的模型，建立机器人步行机构的实体模型，对其足端的轨迹做了图谱规划，并利用插值法对并联驱动端的特性曲线作了研究，并在ADAMS中进行仿真，将结果与理论值相比较；然后设计了一套四足步行机器人密封装配结构设计方案，建立四足步行机器人单足结构、驱动以及传感器监测的三维实体模型，将机器人的整个控制系统，密封装配在步行机器人的机体中，通过轴传动来驱动步行机构实现步行，采用动态扭矩传感器监测步行机构的驱动关节受到的扭矩变化，从而获得四足步行机器人足端的周围情况，为步行机器人的控制方案奠定了基础；论文的最后在分析步行机器人传统控制传感器的基础上，详细分析了动态扭矩传感器的监测原理，并分几种情况分别分析了其监测原理，并在Pro/E的Mechanism模块中实现了监测原理的仿真与验证，最后给出了传感器监测信息与系统判断之间的关系。

In this paper,we take TZ402 CIII oil group for example to show how water flooding affects horizontal well production dynamic of water-free oil production period and that initial stages and metaphase containing water is analyzed,in the end,we conclude that water flooding is an important factor affecting production dynamic of horizontal well and exploitation effect.

文章以TZ402CIII油组为例，分析了注水对水平井无水采油期、见水初期、中含水期生产动态的影响，认为注水是影响底水油藏水平井生产动态和开发效果的重要因素。

A conclusion was drawn that Momentum theory, Vortex theory and Generalized dynamic wake were practicable to get the general design parameters and loads, loads cycles of the rotor were the main vibration excitation, and good dynamic compatibility between rotor and tower is propitious to the well function of the wind turbine unit.

指出动量理论、涡流理论及自由尾涡理论模型是确定风电机组总体设计参数和载荷的依据；叶轮的周期性载荷是机组振动的主要激励，叶轮和塔架良好的动力学相容性有利于机组可靠运行。

You have to walk your own alk in this life.

次生中你必须走自己的路。

To start with, the thesis analyses ***ism in terms of the generic masculine words, word order and semantic derogation of women in greater detail.

论文首先从阳性词泛指，词序，词义的贬降等方面对英语中的性别歧视现象进行了详细的分析。