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Mathematical model and transfer function of electro-hydraulic control system of Friction Welding Machine are established.

建立了线性摩擦焊机电液伺服振动系统的数学模型和传递函数，采用Matlab/Simulink软件对其进行了动态仿真分析，特别是对谐振振动系统原理及效果进行了深入分析，以初步验证线性摩擦焊机电液伺服振动系统性能。

The application of electro-hydraulic proportional control technology in the test of liner friction coefficient and the testing principles of friction coefficient were introduced.

介绍了电液比例控制技术在衬垫摩擦系数中的应用及摩擦系数测定的原理。

Because lots of heat is given out with the electro-chemical reactions and these reactions are taken place along the gas channel gradually, the cell performance is a nonlinear system related with time and space.

由于燃料电池在发生电化学反应的同时还要发出一定的热量，而且这种反应是沿流道逐渐进行的，因此电池性能是一个和空间、时间有关的非线性系统。

Then the possible reason and electro-catalytic mechanism were discussed, and the AC impedance spectra of gas diffusion electrode with Pt/WC under the controlled conditions were also studied.

讨论了Pt/WC催化性能提高的可能原因及催化机理，并对控制条件下Pt/WC氧气扩散电极的交流阻抗谱进行了研究。

The principle of electric tar Filter is that, high voltage electric field formed by direct voltage with voltage between 40～60 KV makes the tar in gas fuel to be absorbed and deposited in electro tar precipitator.

电捕焦的原理是利用40～60 KV 的直流电压形成高压电场，通过沉淀极，使气体中的焦油在电捕焦油器内吸附、沉淀，提高焦油过滤效率，降低设备成本。

Combining the electro-optically cavity-dumped technology with MOPA system could realize the laser output with nanosecond pulse width, gigawatt peak power and nearly diffraction limited beam quality.

通过将电光腔倒空技术和MOPA结构放大器系统相结合可以实现ns级脉宽、GW级峰值功率以及近衍射极限的高光束质量激光输出。

From the experiment and analysis, it can be seen that friction limits realization of high accuracy electro-hydraulic position servo system, movement of any gimbal brings disturbance moment to servo system of other gimbals and the disturbance moment causes error, and, resolution ratio error and setting error of feedback measurement element are directly added to servo system output.

通过实验和仿真可以看出，摩擦阻碍了转台电液位置伺服系统商精度控制的实现，任何一个框架的运动都会对其余框架的伺服驱动系统产生干扰力矩并引起伺服系统误差，反馈测量元件的分辨率误差和安装误差直接反映在伺服系统输出上，对伺服系统的精度有直接影响。

Emphasis is placed on analyzing the influences of friction characteristics on hydraulic motor, dynamic coupling between gimbals, resolution ratio error and setting error of feedback measurement element on accuracy of electro-hydraulic position servo system for a certain simulation turntable.

针对具体的仿真转台电液位置伺服系统，着重分析了液压马达摩擦非线性、框架间动力学耦合、反馈测量元件的分辨率误差和安装误差对转台电液位置伺服系统精度的影响。

Effect of electro-deposition of gold on porcelain-to-metal bond strength ［J］.

不同表面预处理条件对金瓷结合强度的影响［J］。

MA. Electro-static preventive measure done, direct contact W/ the conductor, gold finger and solder point surface.

拒收况Reject Condition：未有任何静电防护措施，并直接接触及导体，手指与锡点表面

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。