查询词典 electric current

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。

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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。

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。

Then the nonlinear electric polarization due to torsion is analyzed and the problems of electric field in torsional effect of piezoelectrics are converted into the inner and outer boundary value problems of partial differential equations according to the equivalent principle of electric field.

总结了压电晶体内部非线性极化的形成规律，利用电场的等效原理将这种非线性极化激发的电场的求解问题转化为等效极化电荷体系的电场问题，并归纳成泊松方程的内边值问题和拉普拉斯方程的外边值问题。

When consumer chooses manual and electric, electric penstock, our company can serve some kinds of electric headstock according to your requirement.

当用户选用手电动式或电动式闸门时，本公司可根据用户的需要提供多种电动起闭机。

Student Press correspondent SUN Yu-Long Ma Bin News newspaper on January 4 10:30 3 night about Weicheng district Weifang port apricot apricot Town, opposite the hospital shop, a fire broke out electric vehicles, electric vehicles more than 20 vehicles and a large number of electric Car batteries and accessories were destroyed,...

见习记者马玉龙□通讯员孙彬本报1月4日讯3日晚10点30分左右，潍坊潍城区杏埠镇杏埠医院对面一家电动车店发生大火，20多辆电动车和大量的电动车电池以及配件被烧毁，。。。

This text has considered the impracticable circuit is as collecting the wind electric field equivalence model behind the road to the electric wire, change, take the place of to including wind electric field node model go on, punish according to PQ at the modest trend foundation that calculate of law in Newton - pressgang.

本文考虑了架空线路作为集电线路后的风电场等值模型，在牛顿-拉夫逊法的潮流计算的基础上对含风电场的节点按照PQ迭代模型进行处理。

Connectors are lines that can be anchored to particular places, called glue points , on the graphic object.

连接符，可固定在图形对象的特定的地方的线条。

Another way of putting it, too many agents have a say in each other's work, and bureaucratic rigor mortis sets in.

另一种表达是，太多的作用物在彼此的工作里都有话语权，官僚的僵尸开始抬头。