变极性焊接电源,variable polarity welding power supply
1)variable polarity welding power supply变极性焊接电源
1.A novel secondary inverting circuit of thevariable polarity welding power supply and its control technology新型变极性焊接电源二次逆变电路及其控制技术
英文短句/例句
1.A novel secondary inverting circuit of the variable polarity welding power supply and its control technology新型变极性焊接电源二次逆变电路及其控制技术
2.Secondary inverter topologies of the variable polarity GTAW power supply and their relevant control strategies变极性焊接电源二次逆变电路拓扑及其控制策略
3.Research on Welding Technology of Alkaline Battery Current Collector and Welding Inverter Power Supply;碱性电池负极钉焊接技术及逆变焊接电源的研究
4.Study on Variable Polarity Square-wave AC TIG Welding Power Supply by Singlechip;单片机控制变极性方波TIG焊接电源的研究
5.Abstract The development of inverter welding power source is the inexorable trend of welding power source orientation.逆变焊接电源是焊接电源的主要发展方向之一。
6.Research on High-power Variable Polarity Plasma Arc Welding Power Supply System;大功率变极性等离子弧焊电源系统的研究
7.Study on the Technologies of Variable Polarity Plasma Arc (VPPA) and Activating Flux TIG (A-TIG) for Magnesium Alloy Welding;镁合金变极性等离子弧焊及活性化焊接研究
8.Development of Auxiliary Control System of Variable Polarity PMIG Welding Equipment;变极性PMIG焊接设备辅助控制系统研制
9.Ultrafast-Convert Polarity VPTIG Welding Process for 5A06 Aluminum Alloy5A06铝合金超快变换极性VPTIG焊接工艺
10.aircospot welding氩电极惰性气体保护接地点焊
11.The Research of CO_2 Welding Inversion Power Resource Controlled by Current Waveform;波形控制CO_2逆变焊接电源的研制
12.Research on High Power Inverter Welding Power Supply Based on DSP基于DSP的大功率逆变焊接电源的研究
13.Development of precise inverter reflow-soldering power supply with waveform control波控逆变式精密回流焊接电源的研制
14.The varible polarity output process of the inverter AC arc welding power source we designed is a very quickly alternating dynamic one.设计的逆变交流弧焊电源输出变极性过程是极其快速变化的动态过程。
15.Study on Artificial Intelligent Control Method for Consuming Electrode Gas Shielded Arc Welding Inverter;熔化极气体保护弧焊逆变电源的智能控制研究
16.Development of Consuming Electrode Gas Shielded Arc Welding Inverter Control System;熔化极气体保护弧焊逆变电源控制系统的研制
17.The Simulation Research to Improve the Arc Welding Inverter Power Output Limit弧焊逆变电源功率输出极限改进的仿真研究
18.Design on EMC of input for inverter welding power source逆变焊接电源输入端口的电磁兼容设计
相关短句/例句
variable polarity arc welding变极性焊接
1.Technology properties ofvariable polarity arc welding with high frequency pulsed current;高频脉冲变极性焊接工艺性能研究
3)VPPAW power变极性等离子弧焊电源
4)inverter welding power source逆变焊接电源
1.Present situation and consideration ofinverter welding power source and modern welding technology;逆变焊接电源及现化焊接技术现状与思考
2.Design ofinverter welding power source based on DSP基于DSP的逆变焊接电源设计
3.The magnetic components used in theinverter welding power source,including the middle-frequency swicth transformer,the inductances used in resonance circuit and in direct current,are crucial ones in the power source.逆变焊接电源磁性元件包括中频开关变压器、谐振电感、输出整流滤波电路中的直流电抗器等,是组成逆变电源的关键元件,对逆变电源的整体性能、体积、质量具有决定性影响。
5)CO2 welding inverterCO2焊接逆变电源
6)welding inverter逆变焊接电源
1.The development and reliability research ofwelding inverter;逆变焊接电源的发展及其可靠性研究
延伸阅读
变分原理(复变函数论中的)变分原理(复变函数论中的)omplex function theory) variational principles (inf日In}F(O(只，t)，0)l}乙+:d乙=】nll，—}——，厂:’、一几t)〔.匕，日亡卜OC一“C’日当r，0时下*(:、，t)/:在B*的紧子集上一致地趋于0(k一1，2).该结果已被推广到二连通区域(13」).若加以进一步的限制，就能得到映射函数在B、(t)内关于表征所考虑区域边界形变的参数的展开式余项的估计式(在闭区域内一致)(【4」).份卜注】存在大量的变分原理，见【A3}第10章.亦可见变分参数法(variation一parametrie nlethod);肠”ner方法(幼wner Tnetl〕ed);内变分方法(internalvariations，服t】1‘对of).还可见边界变分方法(boundary variations，me-tll‘xlof).M.schiffer对单叶函数的变分方法做出了重要的贡献，见〔A3」第10章.变分原理(复变函数论中的)Ivaria石0“目州址妙es(加e网Plex五叮‘6佣山印ry);。即“a双“OHH从e nP一”u“nHI显示在平面区域的某些形变过程中那些支配映射函数变分的法则的断语.主要的定性变分原理是ljxlelbf原理(Linde场fpnnciPle)，可描述如下.设B*是z*平面上边界点多于一点的单连通区域，06B*，k=1，2;设二(;，B*)是对于B*的Green函数的阶层曲线，即圆盘王心川C!<1}到B*而使原点保持不变的单叶共形映上映射下圆周C(r)二{乙:{心}二;}的象，o<;<1.进而设函数f(:，)实现B，到B:的共形单射，f(0)‘O，在这些假定下有:l)对于L(:，B，)上任一点:?，存在位于阶层曲线L(:，BZ)上(这仅当f(B，)二BZ才有可能)或其内部的一点与之对应;及2){f’(0)1蕊}夕‘(0)}，其中g(:，)满足g(0)二o是Bl到 BZ的单叶共形映射(等号仅当f(B1)=B:时成立).Lindebf原理系从Rien坦nn映射定理(见Rle-n.lln定理(Rierl飞幻In theorem))与Sdlwarz引理(Schwarz lemrr必)推出.相当精细的构造使之能够求出由被映射区域的给定形变所引起的映射函数的逐点偏差.定量的基本变分原理系由M.A.几aBpeHTbeB(〔1」)获得(亦可见【2])，可叙述如下，设B:是具有解析边界的单连通区域，0任B!.假定存在给定区域族B，(r)，0‘Bl(r)，0(t蕊T，T>O，B;(0)二B，，具有JOrdan边界rl(t)={:一z，=0(之，t)}，0(又续2兀，0(0，t)二Q(2二，r)，其中Q(又，r)关于t在t二O可微且对又是一致的;设F(::，t)，F(0，t)=0，F:.(0，t)>O，是把B，(t)单叶共形映射为BZ二{22:I:21
