查询词典 electric current

Spark: The phenomenon of intense electric discharge, breakdown or current conduction of electric medium under the effect of electric field.

击穿：电介质在电场的作用下发生剧烈放电或击穿或导电的现象叫击穿。

In order to study diesel locomotive AC-DC electric-drive system, this thesis makes a analysis of the primary capability parameters of AC-DC electric-drive system, under the train"s running state, such as traction dynamotor"s voltage/ current, pulling power and train velocity, then makes a research in the ideal running characteristic and the adjust characteristic of dynamotor and the speed adjust characteristic of electromotor with the theory of AC-DC electric-drive.

本文针对内燃机车交-直电力传动系统，对机车运行过程中，传动系统的主要性能指标参数(如牵引发电机电压/电流、牵引力、机车速度等)及其关系进行分析；并运用交-直电力传动原理，对机车电力传动过程中牵引发电机的理想外特性、调整特性及牵引电动机的速度调节特性进行研究；通过参考东风7型内燃机车的性能、结构参数，运用Visual Basic对内燃机车交-直电力传动系统进行数学建模。

The most common ratio using current asset and current-liability data is the current ratio, which is current assets divided by current liabilities.

利用流动资产和流动负债数据计算的最常见的比率是流动比率，即流动资产除以流动负债。

Backset current area, the important factor of burner performance was discussed on the basis of carrying on numerical simulation to the cement kiln with three-channel burner by the model of. RNG k-ε. The model that backset current area was divided into center backset current area, interior backset current area, and other backset current area was compared in three-dimensional condition.

在采用重整化群κ-ε模型对水泥窑用多通道燃烧器进行数值模拟的基础上，针对影响燃烧器性能的重要指标－回流区进行讨论，将三维条件下燃烧器的流场分布与传统燃烧器流场进行劝比，提出了三维条件下燃烧器回流区分为中心回流区、内回流区、外回流区3个回流区的分布模型，并分析了影响回流区的直流风和旋流风2个重要因素。

Secondly, the discharge characteristics were investigated. As the RF power was switched on and the matching impedance suitably set, a pale-purple glow was initially generated near the wall. With increasing RF power, the pale glow evolved into bright white glow. Analysis of voltage and current wave forms suggested that both the voltage and current wave forms are predominately sinusoidal and discharge cycle was above 100 nanoseconds. Current-voltage curve showed that discharge current increase as voltage increase without any abrupt; The current-voltage phase angle suggested that the plasma evolved from being predominately capacitive to predominately resistive. Discharge mode was essential an abnormal glow discharge plasma.

其次对装置的放电特性进行了分析，从放电的现象看，随着放电功率的提高，放电颜色由开始的暗紫色过渡到亮白色；从电流-电压波形曲线图发现所有的放电电流和电压曲线都是正弦曲线，放电的周期达到上百个纳秒；从电流—电压曲线分析，电流随着电压的增长而增长，并没有发现任何的突变现象；从电压—电流相位角来看，随着电流的增大，相位角基本保持不变，整个电路表现出容性放电性质，但是电阻性成分已经很强，属于反常辉光放电区域。

It consists of circuitry that this constant current circuit stabilizes the criteria of a highly precise returned type constant current circuit of operation in another constant current circuit,Furthermore, the voltage amplification with very high stability is realized by adopting this constant current circuit also as the bias circuit of a first rank cascode and the 2nd step cascode, and the 2nd step constant current load intensity.

它由电路，这恒流电路稳定的标准，一个高度精确的返回式恒流电路的运行在另一恒流电路，此外，电压放大具有极高的稳定性，实现了通过这项恒流电路也作为偏见电路的第一级和第二栅栅一步，和第二步骤恒定电流负荷强度。

The full stress optimizes the application in connecting a design of greenhouse with; Even the experimental study of the only warm environment of winter of a plastic greenhouse; Intensify the current situations and trends of raising pig"s craft development; The scale beasts and birds cultivate the technical research progress of the environmental project; Effective way utilized in recycle treatment of the beasts and birds offal; The nourishing oral liquid culture current situation of Japan and new technology; Engineering of animal husbandry of our country and industrialized development are 20 years; Technological economic analysis that heat energy retrieves in winter of chicken coop of North China; Connect large-scaly with the design and test of the natural day-lighting of a chicken coop; Even the experiment research of the environment of summer of a chicken coop; The pig house cools the current situation of technological application study in summer; Application and design of the vertical ventilating system of pig house; The evaporation of agricultural building cools the current situation and prospect of technological study and application; Of our country the South open to cool the question summer in chicken coop; Vertical air current organization that ventilated of chicken coop; Innovation and Development of China"s Animal Husbandry project Science and Technology; The pig farm of scale is raised in the shed and raised the clean production technology mode scattered to study; the Project of the cow is raised in the shed in the scattered fence; Give up and raise sheeps new craft mode to visit for the first time in scale; The piglet keeps the case warm one degree of characteristics of playground of body temperature is studied; Structure optimization of the joining type pig house of roof truss of light steel; Lose electrical power such nearly one hundred as the impact on airtight type hot wet environment of pig house ,etc.

满应力优化在连栋温室设计中的应用；连栋塑料温室冬季光温环境的试验研究；集约化养猪工艺发展的现状与趋势；规模化畜禽养殖环境工程技术研究进展；畜禽废弃物的资源化利用的有效途径；日本的营养液栽培现状及其新技术；我国畜牧工程技术与产业化发展20年；华北地区鸡舍冬季热能回收的技术经济分析；大型连栋鸡舍自然采光的设计与测试；连栋鸡舍夏季环境的实验研究；猪舍夏季降温技术应用研究现状；猪舍纵向通风系统的应用与设计；农业建筑蒸发降温技术研究与应用的现状与展望；我国南方开放式鸡舍的夏季降温问题；鸡舍纵向通风的气流组织；中国畜牧工程科学技术的创新与发展；规模化猪场舍饲散养清洁生产工艺模式研究；奶牛舍饲散栏饲养工程工艺研究；规模化舍饲养羊新工艺模式初探；仔猪保温箱体温度场特性研究；拱型轻钢屋架猪舍的结构优化；夏季停电对密闭式猪舍热湿环境的影响等近百篇。专著与教材：《家畜环境与设施》《畜牧工程——科技创新与发展》《可食用观赏植物》《园艺设施学》《林果花菜设施快速栽培技术》《农业生物环境与能源工程》《居室花卉装饰》《现代温室技术》《中国养鸡学》等。

Creditors: suppliers of goods or services to the business who are not paid at the time of purchase;债权人:商品或服务的供货商债权人: Current liabilities Short-term debt Accounts payable Accrued expense Total current liabilities Non-current liabilities Deferred income taxes Long-term debt Other non-current liabilities Total Non-current liabilities Total liabilities 1555 5049 8593 15197 950 3402 1201 5553 20750 5.1.3 Owners' Equity Owners' equity is the initial amount of money invested into a business plus the retained earnings.

所有者权益是最初投资到公司的资金，加所有者权益是最初投资到公司的资金，投资到公司的资金留存盈余。它代表了一个公司的总价值。上留存盈余。

The main work can be summed up as follows: Firstly, we studied the thermal-field properties of VCSELs, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. Secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of VCSELs, and then studied the influences of the oxide-confining region with different position or thickness, and the different sizes of the gain-guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. Thirdly, we realized the coupling of electricity, optical and thermal-fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, Fermi levels and optical-field. Finally, we gave the equipotential line distributions with considering N-DBR and double oxidized-confining regions, and analyzed theinfluences of N-DBR and double oxide-confining regions on the distributions of the current density, carrier concentration, temperature and optical-field.

具体工作可以概括如下：首先，研究了VCSEL的热场特性，分析了电流扩展，材料参数和工作条件对于温度分布的影响；其次，从电极电压入手，计算出激光器中的等势线分布，并对不同深度处的电压和电流分布进行比较，研究了高阻区的不同位置和不同厚度、限制层和出射窗口半径的大小对电流密度、载流子浓度和温度分布的影响；再次，实现了电、光、热耦合，求出了阈值电压，计算了不同偏置电压下的电流密度分布、载流子浓度分布和热场分布，分析了温度和载流子浓度变化对折射率、费米能级和光场的影响；最后，给出了考虑N-DBR和双氧化限制层时激光器中的等势线分布，分析了N-DBR和双氧化限制层对VCSEL电流密度、载流子浓度、温度和光场分布的影响。

One of these testing methods, eddy current, has been widely used for metal thickness measuring because of its good sensitivity, high test speed , non-contact and other advantage. The principle of eddy current testing is that, when the test coil is close to the metal conductor with alternating current, the eddy current would be inducing in the conductor, and correspongdingly, the eddy current would affect the original magnetic field, the result is the coils impedance and inducing voltage changed.

其中涡流无损检测技术具有灵敏度高、检测速度快、非接触等特点而广泛应用于金属厚度检测，它的原理是当载有交变电流的检测线圈靠近金属导体时在导体中产生涡流，该涡流又影响原磁场，使得线圈的阻抗和感应电压发生变化，通过分析阻抗或感应电压的变化来获得被测导体的信息。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。