查询词典 electric current

Jiangxi Three-star Aland Electric Appliance Co., Ltd. is a hi-tech enterprise producing fire-intelligent controller, electromagnetic lock, electric intelligent lock, electric bolt and other serial products in building and integrating development, production and service.

江西三星阿兰德电器有限公司是国内专业生产消防智能控制器、电磁锁、机电智能锁、电插锁等楼宇安防系列产品的高新技术企业，是集科研开发、生产制造、销售服务于一体的实行现代化管理机制的企业。

Jiangxi Three-star Aland Electric Appliance Co.,Ltd.is ahi-tech enterprise producing fire-intelligent controller,electromagnetic lock,electric intelligent lock,electric bolt and other serial products.

江西三星阿兰德电器有限公司是国内专业生产消防智能控制器、电磁锁、机电智能锁等楼宇安防系列产品的高新技术企业，是集科研开发、生产制造、销售服务于一体的实行现代化管理机制的企业。

First introduction whole wave commutate electric circuit ofwork principle, immediately after introduction the electriccapacity filter the function characteristics of an electriccircuit, and in the electric circuit adoption exaltation stability,exaltation temperature stability and limit flow a type over flowprotection electric circuit of concrete measure with insure anelectric circuit safety stability of work.

首先介绍了全波整流电路的工作原理，接着介绍了电容滤波电路的性能特点，然后引入了具有放大环节和辅助电源的串联可调式稳压电源，并在电路中采用了提高稳定度，提高温度稳定性及限流型过流保护电路的具体措施，以确保电路安全稳定的工作。

Besides, the detection of a number of target navigation parameters can be estimated. The goal of this paper is to present a PCA electric field algorithm for calculating the target headings, size/velocity rate and port/starboard location in relation to the electric sensor axis. This PCA algorithm is based on the simultaneous analysis of the three components （longitudinal, athwartship and vertical） of the electric signature in order to compare the time evolution of their waveforms as a way to determine the target parameters.

此外，还可估算探测大量的目标航行参数：目的是提供一种主分量分析电场算法，以计算相对电场传感器轴线的目标航向、尺寸／速率、左右舷位置：此种PCA算法基于同时分析电场特性的3个分量，以便比较这些波形随时间的变化，作为确定目标参数的方法。

The invention relates to a processing method of preventing frostbite and restarting of hydrogen electric pile, whose characteristic lies in the treating processes includes: When the electric pile turns off, the unsaturated fuel gas or the nitrogen, through the circle boast to clean the dissociate water; drying the MEA film module to keep the water content below the stipulated temperature which does not ice up; then the recycle gas through a wet exchanger to dry and the dried gas is continue used in the dry pile step; when restarting the electric pile, the recycle gas must heats then through the pile to elevate the temperature, then heats the fuel gas and the oxidant of the gas source, through the weting of the wet exchanger enters to the calefactive pile, enhances the wet step of the film module in the pile, starts the power output of the pile.

本发明涉及一种氢电堆的防冻和重新启动时的处理方法，其特征在于处理过程包括：电堆停机时，将水蒸气不饱和的燃料气体或氮气，通过循环吹扫除去电堆的游离水；干燥其中的MEA膜组件，使膜组件含水量降低到规定低温下不结冰的程度；而后再令循环气体通过一个湿交换机将循环气体干燥，以及被干燥后的循环气体继续用来干燥电堆的步骤；在电堆重新启动时，须将循环气体加热后通过电堆，使电堆升温，然后再将气源的燃料气及氧化剂加热，通过湿交换机加湿后进入已升温的电堆，提高电堆中膜组件的湿度的步骤，开始电堆的功率输出。

The possible mechanisms that the power system of electric vehicles hurts passengers were analyzed in the paper, including electric injury, chemical injury, burning injury, and etc. The reasons that cause these injuries were analyzed in detail. The safety characteristics of the batteries that electric vehicle is in common use, such as excide battery, MH-Ni battery, Li+ battery, and fuel battery, are researched.

本文重点分析了电动汽车动力系统可能对乘员产生的各种伤害，包括电动汽车的电伤害、电动汽车电池的燃烧爆炸伤害、电池电解液的泄漏和电池有害气体释放引发的伤害等方面，具体分析了它们产生的原因和可能引起的后果；研究了电动汽车几种常用动力电池的安全特性，包括铅酸电池、镍氢电池、锂离子电池和燃料电池，以及它们各自可能存在的安全隐患和产生安全问题的机理。

From Maxwell's equations, with material constitutive relation of optically active crystal and boundary conditions of electric field on the boundary between isotropic media and crystal, through coordinate transformation, the formula of the direction of refracted wave for arbitrary direction incident monochromic plane wave was derived. Furthermore, based on the unit vector of direction of refracted wave, eigen waves of electric field, electric displacement vectors and direction of energy flow can be easily obtained.

从麦克斯韦方程组出发，结合旋光晶体的物质方程以及单色平面波从各向同性介质入射到晶体界面时电场的连续性边界条件，通过晶体主轴坐标系和界面坐标系的坐标变换，推导了任意入射方向的单色平面波在晶体界面上的折射方向的求解公式，进而利用所得的折射方向求解晶体中折射波的电场本征模、电位移矢量本征模和光线方向。

The thesis has passed systematic made up of lift control , has set forth programming controller application in controlling in the electric elevator , has adopt ohm of dragon PLC programming program control way , has brought forward four layers of the electric elevator PLC navar population design plan , has listed main concrete PLC hardware circuit , electric elevator picture controlling echelon and instruction form

本论文通过电梯控制系统的组成，阐述可编程控制器在电梯控制中的应用，采用欧姆龙PLC编程的程序控制方式，提出了四层电梯的PLC控制系统总体设计方案，列出了具体的主要PLC硬件电路、电梯的控制梯形图及指令表。

This purpose of design is a computer simulation ventricle except that electric vector quantity of the heart surrounds the running orbit very much, through the stereoscopic and dynamic way, show the course that the vectorial ring of electricity of heart forms, can make student image, understand electric vector quantity of the heart ocularly; Type the well practical foundation in order to study the kind electric picture.

本设计目的是计算机模拟心室除极心电向量环运行轨迹，通过立体动态的方式，展示心电向量环形成的过程，使学生能够更形象，直观地理解心电向量；为学好心电图打好切实的基础。

Before construction starts, make ready the following tools: nail hammer, wrench, hammer, saw, wire plumps, ink fountain, electric drill, steel rule, angle, level bar, portable electric saw, portable electric plane.

施工前准备好钉锤、扳手、榔头、锯子、线锤、墨斗、电钻、钢尺、角尺、水平尺、手提电锯、手提电刨等。

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！