工业干扰

Pole-placement and Inner model tuning methods are discussed finally;(2) For the linear derivative action, several different tracker-differentiators are presented to improve the quality of the derivative signals;(3) A neural network tuning method is given for the nonlinear PID controller which includes the above tracker-differentiator;(4) For the linear integral action, a nonlinear pre-phase integrator is studied in order to decrease the phase delay problem; Simulation results show that the nonlinear PID controller including the pre-phase integrator posseses better performance in both fast and stable property, and strong ability of anti-disturbance;(5) A simple optimal criteria is introduced to optimize the parameters of the nonlinear PID controller based on the pre-phase integrator.

仿真研究表明，由此形成的非线性复合积分PID控制系统，具有快速而平稳的过渡过程和超强的干扰抑制能力；(5)采用物理意义简单明确的目标函数的优化设计方法，对上述非线性PID控制器进行参数整定，达到了满意控制典型工业过程的目的。通过对直线电机伺服系统的仿真研究，表明该种非线性控制器具有同时跟踪多个目标的优越性能。

But this kind of open emission and reception system in High frequency communication has to face two challenges: firstly, natural interference from atmospherics and industry; secondly, tracing, blocking and multipath interference from enemy.

但这种开放式的发射和接收电磁波的通信，特别是在短波通信领域，不仅易遭到天电、工业等自然干扰，而且还要遇到敌方人为的跟踪、阻塞干扰以及多径等各种干扰。

The module of Zone Abnormal noise Processing ofOMEGA sps is an effective mothod of suppressing noise in Shot gather and CMPgather.②The noise of alternating current is suppressed by notching filter in theseismic data which dominating frequency is far from 50Hz.Otherwise,it issuppressed by mono-frequency noise suppression in the time domain of CGGsps;③The module of F-X Coherent Noise Suppression of OMEGA sps isa good mothod to suppress coherent noise.

此方法在炮域和 CMP 道集上应用效果最好；②对于工业干扰，原始资料主频远离 50Hz 时，采用陷波的方法较为简便，否则采用CGG 系统中的时间域单频压制方法；③对于相干噪音压制，OMEGA 中的频率-空间域相干噪音压制方法在知道斜干扰视速度的情况下，应用效果明显。

And good grounding is important means to stabilize work of industrial control computer system and to obviate the disturbances.

而良好的接地则是使工业控制机系统稳定运行、消除干扰的重要措施。

With the rapid development of electronic industries, the electromagnetism jam has become a new public harm.

中文摘要：随着现代电子工业的高速发展，电磁干扰已成为一种新的社会公害。

The effect of high-concentration bromide ion in industrial wastewater on COD determination was studied.

研究了工业废水中高浓度溴离子对COD测定的干扰，考察了有机物浓度、溴离子浓度与表观COD值之间的关系，并初步探索了隐蔽溴离子的方法。

It with wired compares mainly has the cost to be low, carries conveniently, omits the wired wiring the worry; Specially is suitable to grasping the equipment the correspondence, the battery power supply equipment, the vehicles monitoring, the remote control, the telemetering, the small wireless network, wireless copies the table, the system, the plot messenger call, the industry data acquisition system, the wireless label, the status recognition, must contacts the RF smart card, the small wireless data terminal, the safe fire protection is systematic, wireless domain and so on in external guidance system, biological signal gathering, hydrometeorology monitoring, robot control, digital audio frequency, numeral image transmission the low power loss, the microminiaturization is the current wireless correspondence product then takes along the product in particular the urgent need and the key question.

它与有线相比主要有成本低，携带方便，省去有线布线的烦恼；特别适用于手持设备的通信、电池供电设备、车辆监控、遥控、遥测、小型无线网络、无线抄表、门禁系统、小区传呼、工业数据采集系统、无线标签、身份识别、非接触RF智能卡、小型无线数据终端、安全防火系统、无线遥控系统、生物信号采集、水文气象监控、机器人控制、数字音频、数字图像传输等领域中。低功耗、微型化是当前无线通信产品尤其是便携产品的迫切要求和关键问题。无线通信的另一个关键问题是数据传输的可靠性，这取决于诸多因素，如频率选择、同频干扰、传输距离、天线选择等，这些在设计无线通信系统时都要认真考虑和比较。

On the basis of many times of experiments, the interference of alkaline insoluble matters and silicon impurities on the determination of monatomic silicon was discussed, and the method for the removal of main impurity component in industrial silicon was proposed.

分析了样品中的碱不溶物及硅质杂质对单质硅测定的干扰，提出了排除工业硅中主要杂质成分游离二氧化硅干扰的测定方法。

With the development of industry, communication and transportation business, the kind of the noise is getting more and more, stronger and stronger, nearly no urbanite is free from the harm by the noise.

随着工业、交通运输业的发展，噪声的种类越来越多，也越来越强，几乎没有一个城市居民不受噪声的干扰或危害。

This paper gives a brief introduction of research work on the fabrication measurement of rotation accuracy of machine tool main spindles. The following problems have been studied, stability of a new type base circle generator, mechanical method of eliminating eccentricities, precision fast eccentricity-regulating equipment, program of autosof tware for checking delaytime number for improving sampling accuracy and its au...

本文通过试验研究，讨论机床主轴回转精度工业测试的一些主要问题：新型基圆发生器的稳定性；机械消偏法及快速高精度调偏心装置；提高采样精度的自动软件检测延时数程序及自动定标技术；干扰的产生原因及消除方法；主铀的工业测试规范。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！