Best Calc highlightsLarge display with lots of graphic indicatorsPrecedence mode - to reduce entering parenthesis (e. g. 2+2-2=6)Operations and conversions can be performed in binary, octal, decimal, and hexadecimal formCalculate basic arithmetic functionsCalculate the root, square root or cube root of a numberRaise to power functionsLogarithmic and exponent functionsCalculate sine, cosine, tangent, arc sine, arc cosine or arc tangentCalculate in degrees, radians or grads, mil, revDisplays results in normal, scientific, or fix modeMemory operations Call last result functionOperations with big and small numbers are supported (up to ten in 308th power or ten in minus 308th power)and much more to explore!
最佳钙highlightsLarge模式显示indicatorsPrecedence与大量的图形-减少输入括号（如2 +2-2 = 6）业务和十进制的转换，可进行二进制，八进制，和十六进制formCalculate基本算术functionsCalculate根，平方根或多维数据集的numberRaise根电源functionsLogarithmic和指数functionsCalculate正弦，余弦，正切，圆弧正弦，余弦弧或弧tangentCalculate度数，弧度或梯度，密尔，revDisplays结果正常，科学化，或修复modeMemory行动电话与大，小号码的最后结果functionOperations支持（最多10个在零下308电源或功率10 308）以及更多探索！
There-phase arc rectified power and possesses the remote controlled box.
三相双反星形整形电源，带遥控盒。
The company can contract project in installing transformer and the high and low voltage distribution panel and each kind of electrical equipment; installing the cable tray, the pipe and the cable in the electrical or instrument project; installing the automatic control equipment, the precision instrument and the field instrument; welding and assembling medium and low pressure steam pipeline; installing and welding with the argon arc the stainless steel pipe, the galvanized pipe, the carbon steel tube, the jointless steel pipe, PVC the tube and so on each kind of craft pipeline; installing water supply and drainage pipeline; hoisting mechanical equipment, chemical barrel trough, ice water unit, each kind of boiler, pump and so on small medium and large equipment; manufacturing and installing central air conditioning and air hose in the no dust room; keeping warm on steam pipe line, partner hot pipeline, chemical barrel trough and each kind of equipment above the chemical plant, the electrical factory, the pharmaceu-tical factory, the machine factory, the thermal power plant, the water works, the paper mill etc.
本公司可承接化工厂、电子厂、制药厂、食品厂、生技厂、机械厂、热电厂、水厂、造纸厂等各种厂房中的变压器和高、低压配电柜及各种电器设备的安装；电气、仪表工程的线槽安装、配管、拉线；自控设备及精密仪器、仪表的承装；中、低压蒸汽管线配置、电拌管线配置及焊接；不锈钢管，镀锌管，碳钢管，无缝管及PVC管等各种工艺管线的配置及氩弧焊接；给排水管线的安装；工厂机械设备，化工桶槽，冰水机组，各种锅炉及泵浦等大中小型设备的吊装；无尘室内的中央空调及风管制作与安装；蒸汽管线，伴热管线，化工桶槽及各种设备的保温工程。
In order to research the characteristics of harmonic of arc welding power supply controlled by eletron, some experiments are designed to test the harmonic of SCR-rectifier and IGBT inverter welding machine with resistor and arc load.
为了研究电子控制的弧焊电源的谐波特征，设计了可控硅整流和IGBT逆变两种焊机在电弧和电阻负载下的谐波测量实验。
It is the first time that no additional anode was adopted in the magnetic macroparticles filter. At the same time the auto-re-igniting system was designed for vacuum cathodic arc deposition instrument. It ignites the arc with an electronic component with high voltage and can auto distinguish weather the arc dies out or is on during the deposition via a main power supply feedback unit. The energy for igniting the arc is very less and thus can successfully prevent the film being contaminated.
设计制造的电子式真空阴极弧离子镀引弧器成功地实现了高压脉冲引弧，可以多次重复使用，所用能量较小，可以有效防止对所镀膜的污染，引弧可靠，能够自动识别电弧是否引燃，能够在熄弧后自动重新引弧，重新引弧的速度快，有效防止了熄弧引起的气压波动，使镀膜过程中气压非常稳定。
In accordance with superposition theorem and substitution theorem, the symmetric three-phase and asymmetric three-phase arc furnace electric power system is reduced as a one phase system.
从替代定理和叠加原理出发，将三相对称及不对称电弧炉系统简化为单相系统进行求解。
The maximum and minimum critical speed, vmax and vmin are mainly determined by the laser power and arc current, respectively.
激光功率是决定上临界速度vmax的主要因素，电弧电流是决定下临界速度vmin的主要因素。
The rubber can reduce a feeling of ponderousness when you strengthen power and create a long arc, which benefits the ball control and exerts fast attack and loop drive at near table.
在击打40mm 乒乓球时，可明显减轻发力的沉重感，有利於控球，并获得较长的弧圈，同时在近台即可发挥快攻与弧圈威力。
The zero-sequence measurement current's distribution in the automatic arc-suppressing coil earthed power system is analyzed.
小电流接地主要有中性点不接地、中性点经高阻接地、中性点经消弧线圈接地三种方式。
High-power direct current impulse source that is developed by ours can help put up plasma nitriding, which solves the coupling questions about parameters of physics and techniques to a great extent, which improves the break arc's performance.
利用自行研制的大功率直流脉冲电源进行等离子体渗氮，在很大程度上解决了物理参数与工艺参数的耦合问题，同时改善了灭弧性能，为渗氮工艺自动控制提供了可能。
Through many times scene practice and the examination, analyzed the reason of the plasma to interrupt the arc in the ignition procedure, introduced the corresponding processing measure, finally solved the question for the plasma to break the arc in the ignition procedure, has guaranteed the economg movement of power set's security.
通过多次的现场实践与检测，分析了等离子在点火过程中断弧的原因，介绍了相应的处理措施，最终解决了等离子在点火过程中的断弧问题，保证了发电机组的安全经济运行。
The Test Research on Secondary Arc of the Line with Compensation in the Power System.
电力系统潜供电弧有补偿情况的试验研究。
The results show that single power source twin-wire submerged arc welding, which is one of alternative methods of submerged arc welding with high deposition rate and low heat input, can meet manufacturing requirements of lange diameter full welding ball-valve.
结果表明，单电源双丝自动埋弧焊熔敷率高、热输入低，可满足大直径全焊接阀体球阀的制造要求。
The results showed that single power source twin-wire submerged arc welding, which is one of alternative methods of submerged arc welding with high deposition rate, low heat input, can cater for manufactural demands of big diametrical full welding ball-valve's manufacturing.
结果表明，单电源双丝自动埋弧焊熔敷率高、热输入低，可满足大直径全焊接阀体球阀的制造要求。
In the paper, the working principle and manufacture process of the bigger power arc discharge sources Were discribed briefly.
本文主要论述了大功率弧光放电电源的工作原理及其制造过程。
The power has been used to conduct two sorts of experiments including both to restrain arc discharge and to control hollow cathode discharge.
在等离子体负载下进行了抑制弧光放电和空心阴极效应的实验，结果表明：交流脉冲放电对弧光放电和空心阴极效应的抑制是非常有效的。
A rectifier used in high-voltage direct current power transmission systems and industrial processing between about 1909 to 1975 is a mercury arc rectifier or mercury arc valve.
汞弧为整流高压直流电源传输系统中的使用和工业加工 1909年到 1975年之间是汞弧整流器或汞弧阀。
A controller based on PID neural network is proposed to for arc welding power of which output characteristic is responded to given value quickly and intelligently controlled in welding process.
为了实现弧焊过程弧焊电源输出特性到给定量的快速响应及其智能控制，提出了一种基于PID神经网络的控制器。
G sets are useful for producing DC for railway traction motor s, industrial motors and other high-current applications, and were common in many high power D. C. uses (for example, carbon-arc lamp projectors for outdoor theaters) before high-power semiconductors became widely available.
G 集可用於生产区的铁路牵引电机、工业电动机和其他高电流应用程式以及大功率半导体成为广泛可用之前常见於许多高功率特区用途（例如室外剧院的碳弧灯投影仪）。
Starting from computational fluid dynamics and by referencing the hydraulic design parameters of a hydropower station, the geometrical models of spiral case, stay vane, guide vane, runner, draft tube, and other flow passage components of this power station are established. According to the lower discharge capacity and lower efficiency during large flow rate of the original runner, the linear type crown is changed into arc type crown, meanwhile according to the unreasionable position design of the inlet edge and the outlet edge of the original vane, the outlet edge is moved to the outboard, which have increased the discharge capacity of the turbine and improved the energetic property during large flow rate.
本文作者从计算流体动力学出发，根据一具体水电站的水力设计参数，建立了该电站的蜗壳、固定导叶、活动导叶、转轮及尾水管等过流部件的三维几何模型，针对原转轮的过流能力小、在大流量工况时其效率偏低的缺点，把原转轮直线型上冠改为圆弧型上冠：同时，针对原叶片进、出口边的位置不合理的设计，把转轮出口边向外侧移动，提高水轮机的过流能力，有利于改善大流量工况时的能量性能。