查询词典 switch engine

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。

The main products are: timer; counter; photoelectric switch; close switch; temperature controller; solid-state relay; security screens, etc..

主要产品有：计时器；计数器；光电开关；接近开关；温度控制器；固态继电器；安全光幕等。

Switch force and inadequate displacement of elastic bending switch rail is one of the key parameters in the design of turnout.

随着列车提速和客运专线的建设，道岔的设计也由静态设计向动态设计转变，弹性可弯尖轨及心轨的扳动力及不足位移是道岔设计中的关键问题。

The design techniques of multi-channel field distortion switch were studied and a 200kV/100kA ring rail electrode switch was designed and tested.

成功设计和研制了200kV/100kA环型轨道式场畸变开关和200kV激光触发多级多通道开关，达到了国内先进水平。

Obviously,uses electricity between the rail switch handle and the signal handle locks the relation to obtain the interconnection relations,also not both distance limit far and near,also not rail switch number how many influence.

显然，在道岔握柄和信号握柄间用电锁器联系取得联锁关系，既不受两者距离远近的限制，也不受道岔数多少的影响。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。