查询词典 electric resistance

A device and method for preparing compound nano fiber endless tow, which contains feeding material liquid to pair of electric spinning nozzle on frame, each nozzle respectively applied with high dc voltage with opposite polarity, each pair of nozzle jetting out nano fiber with opposite electric charge, said nano fiber attracting and colliding each other to form compound nano fiber, then forming nano fiber endless tow after drawing and stretching, the first opposite set pair of electric spinning nozzle jetted compound nano fiber endless tow is stretched down and used as acceptor which covered by the nano fiber jetted by second pair of nozzle an d forming two layers of compound nano fiber endless tow after drawing and stretching, in turn to get multilayer compound nano fiber endless tow after drawing and stretching by godet roller.

复合纳米纤维长丝束制备装置及其制备方法是一种简单、高效电纺制备纳米纤维长丝束的方法，其步骤为将料液输送给支架(3)上的电纺喷头对(1)；喷口相向的电纺喷头对(1)的每个喷头分别施加相反极性的直流高电压；每对相向喷口喷出分别带相反电荷的纳米纤维，并在空中相互吸引、碰撞形成复合纳米纤维，经牵引、拉伸后形成复合纳米纤维长丝束；第一对相向放置的电纺喷头纺丝形成的复合纳米纤维长丝束向下拉伸，并作为接受体与第二对电纺喷头喷出的分别带相反电荷并相互吸引的纳米纤维在空中相遇，被第二对电纺喷头喷出的纳米纤维包裹，经牵引、拉伸后形成两层复合纳米纤维长丝束；依次类推，最后经导丝辊对(2)牵引、拉伸后得到多层复合纳米纤维长丝束。

Derives the formulae for calculating the distortion and stress on the acting surface of flexspline load in the drive process of the harmonic gear drive with three-wave wavegenerator;(2) analyzes and compares the performance of plastic and steel products under light load drive and calculates the probably reached limit of drive ratio for both types of flexsplines under the same load;(3) applies the harmonic gear drive with three-wave wavegenerator to the small-sized multiple-revolution electric device of valves by taking into consideration of the low limit of the drive ratio for the harmonic gear drive with three-wave wavegenerator made of plastics, improves the design on the main drive mechanism of the traditional small-sized multiple-revolution electric device of valves, and validates through examples the feasibility for the harmonic gear drive with three-wave wavegenerator made of plastics to be applied to the small-sized multiple-revolution electric device of valves. Finally the author performs calculations on the two types of the flexsplines of the harmonic gear with three-wave wavegenerator by using the finite element method and analyzes the causes for the errors.

本文根据三波谐波齿轮传动的运动变形特点，采用弹性薄壳的力矩理论，推导了三波谐波齿轮传动柔轮载荷作用面上的变形及应力计算公式；分析比较了轻载传动情况下塑料和钢材的性能，计算了塑料制谐波柔轮和钢制谐波柔轮在相同载荷情况下可能达到的传动比极限；对塑料制及钢制三波谐波齿轮柔轮进行了有限元计算，分析了产生误差的原因；针对三波塑料谐波齿轮传动比极限低的特点，将之运用于小转矩多回转阀门电动装置中，对传统的小型多回转阀门电动装置的主传动机构进行了改良设计，并通过实例验证了三波塑料谐波齿轮传动在小转矩多回转阀门电动装置中应用的可行性。

Is one of the earliest professional development and production of electric vehicle speed controller of the private scientific and technological enterprises, the company has a strong professional design and production capacity, products have been a number of brands for the domestic electric vehicles matching efficiency and performance are better than ordinary products, annual production capacity of 200,000 sets, the company has brush controller, using pwm control, high efficiency, with over-current, current limiting, undervoltage,"speed" a wide range of protection features Special high-power brush has controller using the latest electric vehicles for the use of high-life relays and intelligent anti-Speed circuit.

溧阳爱斯特自控器材科技开发有限公司是国内最早专业开发生产电动车调速控制器的民营科技企业，公司具有较强的专业设计及生产能力，产品已为国内诸多品牌电动车配套，其效率及性能均优于一般产品，年生产能力二十万套，本公司生产的有刷控制器，采用pwm 控制，效率高，具有过流、限流、欠压、"飞车"多种保护功能，特别大功率有刷控制器采用最新专供电动车使用高寿命的继电器及智能防飞车电路。

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热门点击：北京富强电热带 \电伴热带\ 电伴热\ 伴热带\ 电加热带\ 加热带\ 北京电热带 \富强电热带\ 恒功率电热带\ 自控温电热带 \防爆电热带 \自限温电热带 \硅橡胶电热带 \玻璃纤维电热带 \陶瓷履带式电热带\ 水箱保温电热带 \电伴热保温电热带 \化工管道防爆电热带 \输油管道专用防爆电热带\ 天然气管道防爆电热带\ 特种防爆电热带\ 海洋石油平台专用防爆电热带\ 船用防爆电热带\ 硅橡胶油桶电热带 \地采暖专用电热带 \消防管道专用防爆电热带 \仪表管线防爆电热带 \热电厂专用防爆电热带 \钢铁厂专用防爆电热带 \化工厂专用防爆电热带 \太阳能水管专用电热带 \水泥厂管道专用电热带\ 管道保温专用电热带\ 恒功率电伴热带 \自控温电伴热带\ 配电房除湿专用防爆电热带 \变电站除湿专用防爆电热带\ 高压电缆化冰雪专用防爆电热带 \制药厂冷却塔专用防爆电热带 \煤矿水管道专用防爆电热带\ 油气运输专用车防爆电热带\ 超长型特种防爆电热带等。

Triphase inbalance voltage and electric current of the circuit will cause over computation of the kilowatt-hour meter,"WF" series of electric saver can improve the scale of the inblanced voltage or current efficiently, and brings considerable electric saving effect.

线路中的三相不平衡电压和电流会造成电度表的过度计量，WF系列节电器可有效改善不平衡电压电流的程度，带来可观的节电效果。

RLD series of electric type water cooling belt vulcanizing machine, small size, light weight, hot plate temperature uniformity, water pressure system, the supply of (1.0 ~ 2.0mpa) uniform pressure, with light-handed one electric control box, electric control box and the host connected by an integrated plug-and multi-core cables to complete, easy to operate, reliable, widely used in the current canvas, nylon, steel cord belt transport site vulcanized bonding also applies to other special anti-corrosion properties of thermal curing tape joints.

RLD系列电热式水冷却胶带硫化机，体积小、重量轻，热板温度均匀，水压系统供给（1.0～2.0mpa）均匀压力，配有轻型手自动一体电控箱，电控箱与主机的连接由一体化插件及多芯电缆完成，操作方便，工作可靠，目前广泛应用于帆布、尼龙、钢丝绳芯运输胶带的现场硫化胶接、亦适用于防腐热等特殊性能的胶带的硫化接头。

Finally, according to voltage with compute the electric current choose once equipments, including circuit breaker, insulate the switch, fuse, voltage transformer, current transformer, lightning arrester, busbar and electric cable and so on, then according to compute the result of the short-circuit electric current with designs the request to once equipments proceed check to break the ability of flowing and stable degrees of short circuit about moving and hot.

最后，根据电压和计算电流选择一次设备，包括断路器、隔离开关、熔断器、电压互感器、电流互感器、避雷器、母线和电缆等，再根据短路电流计算结果和设计要求对一次设备进行断流能力和短路动稳定度、热稳定度的校验。

Xinhua net Chengdu on October 16 report reporter from Chinese east electric group learns, group of electric machinery of first homebred low temperature wind was in China recently east the Oriental turbine of electric group subordinate the factory gets offline, be about to shipment installs llano of Er of shellfish of Mongolia municipality Hulun inside.

广告摘要：新华网成都10月16日电记者从中国东方电气集团获悉，中国首批国产低温型风电机组近日在东电集团下属的东方汽轮机厂下线，即将发运并安装在内蒙古自治区呼伦贝尔大草原。

The dynamic behavior of an individual polymer chain in the confined system or environment (the extension of a single polymer chain which one end is fixed under the electric field, the translocation process of a single Gaussian chain through a nanometer-scale pore under the electric field, spontaneous recoil of a single chain located in the confined environment) was studied by using Monte Carlo computer simulation. The simulation results can be used to investigate the kinetic law of molecular chain polarization, dipole relaxation and trapped charge carrier under the application of electric field.

完成了单链高分子在受限体系或环境中(一端固定的单链高分子在外电场作用下的伸展、单链高分子在外电场驱动下穿越纳米管道的过程、处在受限环境下高分子链的自发回弹等)动力学行为的Monte Carlo计算机模拟，其结果可用于在电场作用下分子链极化、偶极松弛或陷阱中受陷电荷的运动规律研究。

Widely applied for electric motor, electrical appliance, apparatus, flame-proof electric motor and ship electric motor.

广泛用于电机、电器、仪表，以及防爆电机、船用电机。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。