低压的

In order to make clear the phenomenon of current zero in the arc-quenching chamber of deion plates, the process of dielectric recovery and reignition of short arc between iron plates is investigated, and then the dielectric recovery strengths of various chambers are measured and compared. The different characteristics near current zero in the deion plate chambers are also analyzed based on experiments in the paper.

为弄清栅片灭弧室内电弧电流的过零过程，专门研究了不同条件下栅片间低压短弧的介质强度恢复过程和电弧重燃过程，然后测量了多纵缝和栅片灭弧室的介质恢复强度，对比了它们的熄弧性能，在试验的基础上，分析了栅片灭弧室中电弧电流的过零特征。

At this point, control circuit control high-power switch will be presented in a high-voltage direct-current high-frequency batch sent to high-frequency transformer primary and went on to the secondary loop after ventriclar hifrequency rectifter-voltage alternating current, by filtering is converted to a low-voltage stoichiometrical DC.

此时，控制电路控制大功率开关将高压直流电按照一定的高频频率分批送到高频变压器的初级，接着把从次级线圈输出的降压后的高频低压交流电，通过整流滤波转换为低电压强电流的直流电。

The work in the paper is useful and significant for busbar trunking factory as well as brings new idea to deal with pre-process in low voltage breaker simulation calculation system.

本文的工作对于母线槽工业生产中的施工设计具有积极的意义，同时也为低压断路器仿真计算的前处理提供了一种新的解决方法。

Through the keyboard located on the front panel it is possible to display the amplifier main measures and to set or modify the relevant thresholds and pre-settings underpower alarm, remote controls, monitoring point signals, etc.

通过位于前面板的键盘，显示放大器的主要的尺寸和设置或更改相关的开端和预设置是可能的（低压报警，遥控控制，监视要点信号，等等。

Under consideration of these problems and traditional supercharging equipment and methods in the world,this paper discussed and analyzed the technical procedures of compressor application in the gas gathering stations,calculated and predicted such main working parameters .

针对靖边气田压力递减快、部分井已经采取间歇生产方式而必须进行低压气井增压的问题，借鉴目前国内外气田增压常用的设备及方法，结合靖边气田的工艺实际，探讨分析了压缩机在该气田集气站应用的工艺流程，计算预测了气田增压开采期内的压缩机进、出口压力等主要工作参数。

Under consideration of these problems and traditional supercharging equipment and methods in the world,this paper discussed and analyzed the technical procedures of compressor application in the gas gathering station s,calculated and predicted such main working parameters .

针对靖边气田压力递减快、部分井已经采取间歇生产方式而必须进行低压气井增压的问题，借鉴目前国内外气田增压常用的设备及方法，结合靖边气田的工艺实际，探讨分析了压缩机在该气田集气站应用的工艺流程，计算预测了气田增压开采期内的压缩机进、出口压力等主要工作参数。

The paper grounds on a design and development automation project of universal air circuit breaker of a low-voltage electrical plant in Jiangsu, and according to the enterprise's demand mainly researches development and re-design of the original circuit breaker for the problems of unperfect function, inconvenient setting operatin and unfriendly man-machine interfaces, and researches how to keep reliability of the breaker, increase the level of automation and intelligence and simultaneously reduce the product cost as far as possible. So, this paper has certain practical significance and application prospect. Among this subject, the intelligent controller regards MSP430 MCU which TI Company produces and CPLD as the key procsssor.

本文依托江苏某低压电器厂的万能式空气断路器的自动化设计开发项目，根据企业需求，针对原断路器功能单一，整定不方便，人机界面不友好，产品档次低等问题进行改造和重新设计，在保证断路器工作可靠性的同时，按企业要求进一步完善保护功能，提高断路器的自动化程度和智能化程度，同时尽可能降低产品成本，因此本文的研究内容具有一定的现实意义和应用前景。

Abundant supply companies, transport facilities, mainly engaged in the production structure of the steel pipe, large diameter side tubes, thick-walled tubes, fluid tubes, in the low-pressure boiler pipe, blast pipe, fertilizer and petroleum cracking tube dedicated pipe, ship tube, electricity use imports of high-pressure alloy pipe and tube, such as various welded varieties you can buy over the past few years has grown in strength and size of enterprise and high-quality products that win the majority of customers trust our company with excellent products, superior services and reasonable the price of the service of our customers.

公司货源充足，交通便利，主要经营各钢厂生产的结构管，大口径方管、厚壁管、流体管、中低压锅炉管、高炉管、化肥专用管和石油裂化管、船舶管、电力用管以及进口高压合金管各种焊管等多个品种任你选购，几年来企业规模不断发展壮大，并以优质的产品赢得了广大客户的信赖本公司以卓越的产品，一流的服务，合理的价格服务于广大客户。

The experiment results show that the lowest synthesis pressure changed with the different proportion of added boron. At the same time, from the color change of synthesized diamond, we can see that it is an effective method to improve the content of boron in diamond crystal.

实验结果表明，随硼添加比例的不同，合成金刚石的最低压力点也不同；同时，通过不同添加比例的硼合成出金刚石的颜色，可得知该方法对提高金刚石内硼含量的有效性。

We exhale by relaxing the diaphragm a primarily passive process into its original dome shape, which decreases the volume of the thoracic cavity and raises the pressure inside the lungs, thereby, pushing the air inside the lungs to a lower pressure outside the lungs.

我们呼气的时候是放松横隔膜-基本是一种被动行为，然后回复到原来的穹顶型，这样减小胸腔的容积，提高肺部的压力，把肺部的空气压到外部的低压区。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。