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Company's products are as follows: 1, AC-DC transformer test, the control box and console, high-voltage direct current generator, high-current generator, the third-harmonic power generator , AC-DC high-pressure measuring device, dry-type isolation transformers. 2, MOA tester, relay calibrator, DC Resistance Tester, insulating oil dielectric strength tester, dielectric loss tester, insulating oil dielectric loss tester, transformers containing a switch tester. 3, clamp-type ground resistance tester, grounding resistance table, insulation resistance tester, switch mechanical properties tester, loop resistance tester, vacuum tester. 4, cable fault Tester (notebook computers, LCD, kinescope three shows), sentinel-synchronous digital, cable identification device, try扎cable, high-voltage integrated devices, underground pipeline detector, cable detector, high pressure Cable Detector, DC Bridge, DC arms Bridge, the PSA than the bridge. 5, the company also several well-known domestic and foreign agents company's products, for example: Japan has legislation (Xinhua shake table 3121,3122,3123,3125), Japan with 000 (high-voltage clamp-type table HCL1000D, HLC9000, HLC5000, etc.), cable Altimeter instrument, laser range finder, non-metallic pipeline positioning system, and so on. N:-yuan power equipment

公司产品如下：1、交直流试验变压器、控制箱及控制台、直流高压发生器、大电流发生器、三倍频电源发生器、交直流高压测量装置、干式隔离变压器。2、氧化锌避雷器测试仪、继电保护校验仪、直流电阻测试仪、绝缘油介电强度测试仪、介质损耗测试仪、绝缘油介质损耗测试仪、变压器有载开关测试仪。3、钳型接地电阻测试仪、接地电阻表、绝缘电阻测试仪、开关机械特性测试仪、回路电阻测试仪、真空度测试仪。4、电缆故障测试仪（笔记本电脑、液晶、显象管三种显示）、数显同步定点仪、电缆识别仪、电缆试扎器、高压一体化装置、地下管线探测仪、电缆探伤仪、高压电缆探伤仪、直流电桥、直流双臂电桥、变压比电桥。5、本公司还代理国内外多家知名公司的产品例如：日本共立（电动摇表3121、3122、3123、3125等）、日本万用（高压钳型表HCL1000D、HLC9000、HLC5000等）、线缆测高仪、激光测距仪、非金属管线定位系统等等。

The unit of switch has 16 switches totally, and each switch can be controlled by the keyboard.

开关量单元共有16个开关量，每个开关量都由面板键盘控制，并由面板的指示灯指示开关量状态。

According to this unit, n×n ATM switch unit and multistage switch network are also obtained.

本设计采用的仿真设计环境是Modelsim 5.6，综合工具则采用Quartus II 3.0。

This switch is used for compounded type transformer. It is classified into four-position and two-position products. The four-position switch is divided into "T" type 、"V" type and "I".

本开关应用于组合式变压器，负荷开关有四位置和二位置开关，四位置开关按结构形式不同可分为T型、V型和I型。

The case occurred when the system will automatically switch to the police regional camera images, video recorders start time, the operator can easily switch to track suspicious scene images and video for analysis with the case.

发生案情时系统能自动切换至报警区域摄像画面，同时启动长时间录像机录像，也可由操作人员方便地切换画面跟踪可疑场景，并录像以供分析案情用。

By using this combined curve, the widening or decrease of the track gauge is 0.06mm on the actual switch point, 0.78mm on the planing Start point if the longitudinal displacement of the switch rail is 20mm.

采用所选线型时，若尖轨向前或向后纵向移动20mm，尖轨实际尖端位置轨距减小或增加0.06mm，尖轨刨切起点位置轨距减小或增加0.78mm。

Such as: You can press the keyboard Ctrl / Alt / shift key and so on through the rolling wheel WHEEL able to switch different functions, such as pressing ALT when the scroll wheel can toggle the view display / press the scroll wheel can switch SHITF

可以在按下键盘Ctrl/Alt/shift等键时通过滚动滚轮WHEEL能可切换不同功能，如按下ALT时滚动滚轮可以切换视图显示方式/按下SHITF滚动滚轮可以切换

This is another new milestone from its previous research demo that able to switch on a power switch through the mind thinking.

这是另一个新的里程碑，从以往的研究演示可以切换上电源开关，通过头脑的思维。

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。

Placing the switch in the test position illuminates the indicator lights, and placing the switch in the dim position dims them.

将开关置于测试位照亮指示器灯光，驾驶舱指示器系统的灯光可通过中央面板上的&灯光&开关来调暗或测试。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。