电源电阻

Draw and interpret circuit diagrams containing sources, switches, resistors,lamps ,ammeters voltmeters, bells, and diode.

会画含电源，开关，电阻，灯，电流表，电压表，电铃和二极管的电路图。

Arc cutting;Arc welding;Arc-welding equipment;Blowpipes;Burners;Construction requirements;Contact safety devices;Cutoff device;Cutting;Definition;Definitions;Dimensioning;Electric contact protection;Electrical engineering;Electrical safety;Equipment;Impact strength;Insulating resistance;MAG welding;Manual arc welding;Manual operation;Marking;MIG welding;Operating instructions;Plasma arc cutting;Plasma-arc welding;Protection against electric shocks;Protective measures;Safety engineering;Safety requirements;Specification;Temperature-rise tests;Test value;Testing;Testing conditions;Thermal;Thermal stress;TIG welding;Welding;Welding engineering;Welding equipment;Welding power supply

中文标题电弧焊接设备。焊炬中文主题词电弧切割；电弧焊接；电弧焊接设备；焊枪；燃烧器；结构要求；接触安全装置；切割装置；切削；定义；尺寸选定；电接触保护；电气工程；电气安全；设备；冲击强度；绝缘电阻；MAG 焊接；电弧焊操作手册；手控；作标记；金属极惰气保护焊；操作说明书；等离子体电弧切割；等离子电弧焊；防电击；保护措施；安全工程；安全要求；规范；温升试验；试验值；测试；测试条件；热的；热应力；钨极惰性气体保护焊；焊接；焊接工程；焊接设备；焊接电源

Low ohmic Manganin resistors for battery and energy management in cars and trucks.

低阻值锰镍铜合金电阻主要用于轿车和卡车的电池及电源管理。

The boost converter is a voltage step-up and current step-down converter .the current source is synthesized from a DC voltage source by adding a large value inductor in series .in DC regulated power supply applications ,the voltage sink represents a large value capacitor in parallel with the load resistance .in the application of the DC motor control ,the voltage sink represents the back emf of the DC motor .the switching action produces a pulsating current .the capacitive filter smoothens the pulsating current and provides a DC voltage to the load

升压转换器是一个升压和降流的转换器。电流源是一个直流电压源添加一个大值电感串联合成的。在直流稳压电源的应用，电压降代表一个大值电容并联一个负载电阻。在直流电机的控制应用中，电压降代表反电动势的直流电机。转换行为产生一个脉动电流。一个滤波电容是这个脉动电流平和并且提供直流的电压负荷。

Resistors connected in series across a voltage source; used to ''.

通过电压电源的成系列的电阻；常用于''。

On which, the calculating formulas of which circuits are given when they are operated in asymmetric power voltages and currents, as well as in asymmetric reactances and resistances.

分析三相电弧炉电流不对称对等效电阻、等效电抗的影响，在此基础上，对三相电弧炉在电源电压、短网参数、工作电流皆不对称的情况下，给出了计算公式。

This paper analyzes the hidden danger s in high voltage power supply of the ELA-120/6 electron beamwelding machine, and proposes two countermeasures:one is to redesign the fuel tank control circuit,but use operation regulations to solve the problems;another is install parallel connecting discharge resistor on high voltage capacitor.

分析了EAL-120/6型电子束焊机高压电源存在的安全隐患，提出了消除隐患的两种措施：一是不改动油箱电路，从操作规程上加以解决；二是给高压电容加装并联放电电阻支路。

And this paper introduced the principium, design ideal and approach of waveform presetting of waveform controlling at will The function of relevant hardware circuit controlling was design in this paper uses litter content RLC surge circuit in simulating the current signal of energy storage welding, and took it as Ug to control the inverter cap energy storage spot welding machine. It realized HFPEC resistance spot welding with hardware circuit and got the effect as good as the system controlled by industrial computer and realized the customization and the low cost of welding machine.

本文所设计的相应硬件控制功能，采用小容量RLC 放电回路来模拟输出储能焊过程的电流波形，由此作为电流给定信号直接控制逆变式电容储能点焊电源，实现了完全由硬件电路构成的高频脉冲电阻点焊，能够获得焊接设备的专用化和低成本化的结果，并且可以得到与工控机控制系统相当的焊接效果。

Inverter spot welding power source is one of important directions in the studies of the resistance-welding field.

逆变式点焊电源是电阻焊领域研究的重要方向之一。

The relevant experiments illustrates A.C. power is more suitable for deicing or snow-melting than D.C. Silica fume can improve the dispersion of carbon fibers and then reduce the electrical resistivity of carbon fiber cementious composites. At a certain volume content, when the ratio of cement, sand and stone is l:l:2, the properties of the CFRC is the best on the whole.

大量实验研究发现：采用交流电是碳纤维导电混凝土用于融雪化冰时的最佳电源选择；采用硅灰能较好地提高碳纤维在基体中的分散性，有效降低碳纤维水泥基复合材料的电阻率；并在现有的级配比实验中发现了具有最好综合性能的配比，即在相同的纤维体积含量的情况下，导电混凝土的具有最好综合性能的配比是水泥、砂子、石子的重量比为1：1：2。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。