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Since the lotus root decompression for the box to start the counter protective structure, there are auto-transformers, AC contactor, smart motor protectors digital display components, etc., and below 75 kilowatts for the products, the Department of the use of automatic control mode, and more than 80 kilowatts of products, with two automatic control mode manually, by the change-over switch to switch, smart motor protectors digital display of 0 ~ 240 seconds can be automatically adjusted to control start-up time, prepared autotransformer 60 percent have a rated voltage (65%) and 80% tap two groups, then the factory in 60%(65%) on tap, if you need a larger starting torque, which can be accessed by 80% in the tap, and there are overload, and loss of pressure off the protection.

自藕减压启动柜为箱式防护结构，有自耦变压器、交流接触器、智能数显电机保护器(时间继电器、时间继电器)等元件组成，对于75千瓦及以下的产品，系采用自动控制方式，80千瓦及以上的产品，具有手动自动两种控制方式，由转换开关进行切换，智能数显电机保护器在0～240秒内可以自动调节控制起动时间，自耦变压器备有额定电压60％（65％）及80％二组抽头，出厂时接在60％（65％）抽头上，如果用户需要用较大的起动转矩，可接在80％抽头上，并有过载、断相及失压保护。

She is one has the sense of responsibility person extremely, every day, she can in the punctual switch classroom daylight lamp, in the summer, she also be able the punctual switch electric fan.

她是一个非常有责任心的人，每天，她都会准时开关教室里的日光灯，夏天，她还会准时开关电风扇。

First, the dissertation summarizes the properties, developing state and application fields of BLDCM, then its fundmental structure; operation principle and control strategy is also presented. On the base of roundly analyzing all kinds of the drive motor in electromotion type railway switch, BLDCM is proposed to replace the formerly traditional DC motor in railway switch. Second, the whole design scheme and key technology of control system is put forward based on analyse of the technical parameters and requirements.

首先，论文介绍了无刷直流电动机的特点、发展和应用概况，分析了稀土永磁无刷直流电机系统的基本构成、工作原理和控制方法；在对目前各种电动转辙机驱动电机分析的基础上，提出将稀土永磁无刷直流电机用于铁路转辙机，以替换原有的串励有刷直流电动机。

Fly key Founded in 1985, are National Machinery Industry, the Ministry of Electric Power Industry Ministry sentinel production enterprises, specializing in the production of a variety of voltage fuses, surge arresters, isolation switch, load switch, a portable short-circuit grounding line, high-pressure acoustic ray electroscope, high pressurerod and other products.

衡水飞键电力器材有限公司创建于1985年，是国家机械工业部，电力工业部定点生产企业，专业生产各种电压等级熔断器，避雷器，隔离开关，负荷开关，携带型短路接地线，高压声光验电器，高压拉闸杆等系列产品。

Such a designation is stored in switch memory and is included in signaling information sent to the terminating switch for interSPCS calls.

这项功能被存储在交换机内存中并被包含在发往终端交换机的信令信息中用于interSPCS呼叫。

Then the Noma system deals with the customer data on switch. It is a computer managing system that can automatically deal with customer data. Its main function is to turn the service supporting systems input data into switch data automatically in real time or in certain time.

它是一个自动制作用户程控交换机业务数据的计算机管理系统，其主要功能是使得业务支撑系统用户数据可通过此平台自动时实/定时进行交换机数据制作。

When specific performance after the power switch, power supply fan, CPU fan in the switch, but the CD-ROM, hard disk does not reflect, and wait a few minutes after the power loom in order to start, everything will be all right after the start.

具体表现为当打开电源开关后，电源风扇，CPU风扇都在转，但是光驱，硬盘没有反映，等上几分钟后机子才能加电启动，启动后一切正常。

There is a Soltek motherboard (SL-65FV +) to use more than two years after the sudden bright point, expressed as a power switch, when open, the power supply fan, CPU fan in the switch, but the CDROM, the hard disk does not reflect, and wait a few minutes After the power loom in order to start, everything will be all right after the start.

有一块硕泰克主板（SL-65FV+）使用两年多后突然点不亮了，表现为当打开电源开关后，电源风扇，CPU风扇都在转，但是CDROM，硬盘没有反映，等上几分钟后机子才能加电启动，启动后一切正常。

Aimed at the problem of vacuum tube s working in vacuum switch applied in coal mines, the reasons and results of air escape taking place in vacuum tube s,a modified step is adopted to set up a protection unit for vacuum tube in vacuum switch.

针对真空开关在煤矿推广应用中真空管存在的问题，以及一旦漏气造成的后果和原因进行了分析，提出改进措施，并对在真空开关增加真空管的保护装置进行了探讨。

The article presents the developing condition of PWM and SVPWM first.Then the theory of SVPWM is discussed in detail.The SVPWM is based on the thought of magnetic chain tracking.It makes the ideal magnetic chain circle of three-phased sysmmetry electric motor supplied by three-phased sysmmetry sine wave voltage for basis,uses the practical magnetic chain vector formed by the different switch modes of three-phased inverter to track the basic magnetic chain circle.During the course of tracking,the inverter changes the switch modes properly to form the PWM waves.Then the modulation wave of SVPWM is analyzed in detail.The modulation wave of SVPWM is implicit,but the analogous modulation wave in A-B-C axis needs to be calculated in order to expose the internal relation of SVPWM and SPWM.That is to show the implicit modulation wave of SVPWM. SVPWM actually is a transformed SPWM ruly sampled by the modulation wave which is injected by the zero prefaces based on space vectors.

本文首先对脉宽调制技术的发展现状进行了综述，在此基础上分析了电压空间矢量脉宽调制技术的发展现状；接着对空间电压矢量脉宽调制技术的基本原理进行了详细的分析和推导，SVPWM是基于磁链追踪的思想，它以三相对称正弦波电压供电下三相对称电动机定子理想磁链圆为基准，由三相逆变器不同开关模式下所形成的实际磁链矢量来追踪基准磁链圆的，在追踪的过程中，逆变器的开关模式作适当的切换，从而形成PWM波；然后详细分析了电压空间矢量脉宽调制技术的调制波，虽然SVPWM法的调制波是隐含的，但是为了揭示SVPWM法与SPWM法的内在联系，需要求出SVPWM在A-B-C坐标系上的等效调制波，也就是将SVPWM的隐含调制波显化；SVPWM实质是一种基于空间矢量在三相正弦波中注入了零序分量的调制波进行规则采样的一种变形SPWM。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。