电子污染

As the technology of power electronics develops, a lot of non-linear power electronic components are applied widely in the electric power system. The complicacies of electric power system structure also give rise to a series of problem.

随着电力电子技术的发展，大量的非线性电力电子器件广泛地使用于电力系统中，电力系统结构的日益复杂，给系统的运行带来了一系列的问题，其中最为严重的就是功率因数降低和谐波污染问题。

Along with the development of industry, the electronics and electric devices are used widely day after day, and the harmonic wave pollution in the electric network becomes worse and worse, therefore imperils the safe and economic running of electric system.

随着工业的发展，电力电子装置应用的日益广泛，电网中的谐波污染日趋严重，这严重威胁着电力系统的安全经济运行。

Arc plasma has many advantages, such as high temperature、 high energydensity and so on. It has been applied in the field of cutting、 welding、 metallurgyand material prepared etc, but there is a long-term problem in the field of the arcplasma technology, which is how to reduce cathode erosion to increase the life-timeof arc plasma generator, so many scholars in the world have been studying theproblem on the cathode erosion.

电弧等离子体具有温度高、能量密度大和对环境污染小等特点，它已被广泛应用于切割、焊接、冶金、材料制备等领域，但是在电弧等离子体技术中，怎样减少阴极烧损提高等离子体发生器的寿命是电弧等离子体技术中一个长期问题，因而国内外的许多学者仍在对阴极烧损这个问题进行研究；本文围绕&通过提高阴极表面温度，增强阴极表面的电子发射能力，来增大阴极弧根直径，进而降低电弧通过阴极弧根传入阴极表面的有效比热流，以达到减小阴极烧损的目的。&

Electronic Engine Control is an important method to reduce the engine emissions and improve power and economic performance.

电子控制技术是降低发动机排放污染，提高其动力性和经济性的一个重要手段。

This study investigated the neutron contaminations from medical accelerators, including electron linear accelerators and proton cyclotrons. The evaluation methods and data for neutron shielding were also provided for practical uses.

本论文探讨医用加速器－包含电子直线加速器与质子回旋加速器，在运转过程中可能发生的中子污染，并建立辐射屏蔽的评估模式与数据资料。

With the development of power electronics, nonlinear loads are widely used in power system, which bring about serious harmonics pollution and big current of reactive power. In the same time, the load including high-tech and high precision is developing rapidly, which ask for high quality power. In the other hand, the power net is becoming bigger, the disturbers between different parts of the power net becoming more serious.

随着电力电子技术的发展，越来越多的非线性负载投入电网中，谐波和无功对电网的污染越来越严重，同时，高精密负荷的比重迅速增大，对整个电网电能质量要求越来越高；另一方面，电网的并网规模越来越大，电网各部分之间的干扰也不断加重，这些都严重的威胁着用户电能质量和电网的运行安全。

But recent years, after the widely use of power electronics equipment and influence of special loads such as electric arc stove and electrized railroad, the pollution in power system became much serious than before.

但是，由于近年来电力电子设备的大量使用，以及电弧炉、电气化铁路等负荷的影响，使得电力系统中的污染不断加重。

In recent years, the electrical harmonic pollution is getting more and more serious with the far-ranging of power electronics technologies.

近年来，随着电力电子技术的广泛应用，电力系统谐波污染日益严重，已成为影响电能质量的公害。

In recent years, the electrical harmonic pollution is getting more and more serious with the far-ranging application of power electronics technologies.

近年来，随着电力电子技术的广泛应用，电力系统谐波污染日益严重，已成为影响电能质量的公害。

Maglev health beauty weight loss health beds is a Magnetic support for a complex electronic and mechanical high-tech products of the alternative, suspended in the air bed, its role as a magnet beneath the bedstead and bed base interactions of magnets bedstead bed base and leave them suspended, and then to bed magnetic base of the bedstead can transform the whole magnetic vibration; before and after; around; rocking movement, etc.; in the bedstead campaign process, without any linkage, or gears or belts, twisted Lian passive body without motor or hydraulic arm of the initiative institutions, and its actuation process without any oil or exhaust noise and pollution generation, magnetic levitation force bed, and consumption of reactive small, control is simple, safe and reliable, such a novel concept, design reasonable, full-featured, performance, a wide range of applications; can be described as a collection: physical therapy, fitness, leisure, sleep and other motor function as one design.

磁悬浮养生美容减肥健康床是一种以磁力支撑，为一种电子与机械复合之另类高科技产品，悬浮於空气中的床，其作用为床架下方的磁体与床底座磁体相互作用而使床架离开床底座而悬浮起来，再以床底座磁极之变换而使床架能做上下磁震动；前后；左右；摇摆等运动；在床架的运动过程中，无需任何连杆，或齿轮或皮带，绞炼之被动机构，亦无需马达或油压臂之主动机构，且其作动过程中无任何噪音与油污或废气的污染产生，磁悬浮床作用力大，耗功小，控制简便，安全可靠，此种构思新颖，设计合理，功能齐全，性能优良，应用广泛；可谓集合：理疗，健身，休憩，睡眠等多种运动功能为一体的设计。

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。