查询词典 arc hyperbolic function

The model can be used to simulate network and substation including arc furnace and can take the place of traditional linear electric arc voltage model.

仿真结果表明，本文所提出的模型适用于电弧炉供电系统的电压波动的研究，可以代替传统的线性电弧电压模型。

Arc fault is a major cause of the electric fire, detecting on the arc fault comprehensively and effectively is the study of this article.

故障电弧是造成电气火灾的重要原因，实现全面而有效的对故障电弧的检测是本文的研究内容。

4There is not the electric arc ray radiation owing to the fact that burns down on the electric arc soldering flux layer.

由于电弧焊剂层下燃烧，没有电弧光辐射。

Vacuum interrupter is the core of high voltage vacuum switch. Because of the long contact gap, the axial magnetic field contact is widely used to generate stronger and evener AMF in the contacts' gap. It can reduce arc current density and arc energy, so its interrupting performance is improved.

高压真空开关的核心部件之一是真空灭弧室，由于其触头开距较大，因此多采用纵向磁场触头，希望触头间隙有较强且较均匀的纵向磁场，这样可降低电弧电流密度，降低电弧能量，从而提高开断性能。

Roundness tolerance of pitch diameter Roundness tolerance for a minimum of 345o circumferential arc of the pitch diameter shall not exceed .002 inch (0.051 mm) total, or one half the pitch diameter tolerance if the pitch diameter tolerance is less than .004 inch (0.102 mm); roundness tolerance of the remaining 15o maximum circumferential arc shall not exceed .004 inch (0.102) total, provided such tolerance does not result in excrescence on the thread flank.

圆度公差沥青直径圆容忍最低限度的345o圆周弧音高直径不得超过0.002英寸（ 0.051毫米）总，或一的一半，足球场直径公差，如果沥青直径公差小于0.004英寸（ 0.102毫米）；圆的耐受性，其余15o最大周弧不得超过0.004英寸（ 0.102 ），共计提供这样的宽容不会导致在excrescence对线程的侧翼。

The post-arc fulgurite current of low voltage current limiting fuse is studied. It is show that post-arc fulgurite current varies with breaking current.

对低压限流熔断器中的弧后残躯电流进行了研究，得出弧后残躯电流随开断电流大小变化而变化。

A set of equipment including a special shunt and a special amplifier are made up to measure the post-arc fulgurite current from which the post-arc fulgurite resistance is obtained.

本文通过自制试验设备测量熔断器中弧后残躯电流随时间变化的关系曲线，从而得到不同熔体材料采用不同的填充方法的弧后残躯电阻曲线。

The structures, features, application principles and on-site applications of six kinds of prevention products developed on the basis of above mentioned methods, i.e., the insulation striped arc-protection fitting, clamping post porcelain/ composite insulator, stab-type arc-protection fitting, stab-type clamping post porcelain/composite insulator, ring electrode MOA with external series gap and stab-type electrode MOA with external series gap, are presented.

分析了10 kV配电网绝缘导线雷击断线机理，归纳出"疏导式"和"堵塞式"2种防护思路，介绍了基于2种防护思路研制的剥线型防弧金具、放电箝位柱式瓷/复合绝缘子、穿刺型防弧金具、穿刺型放电箝位柱式瓷/复合绝缘子、环形电极带外串联间隙金属氧化物避雷器和穿刺电极带外串联间隙金属氧化物避雷器6种防护产品的结构、特点、应用原则及现场应用情况。

The welding equipment are advanced OTC,CO2,gas shielded arc welding and automatic submerged arc welding,semi-automatic cutting machine,250 ton liquid press,hobber and plate cutting machine.

焊接设备采用先进的OTC、CO2气体保护焊和埋弧自动焊、半自动切割机、250吨油压机、滚床设备、剪板机等。

Based on theories of hydromechanics, hydrokinetics and heat transfer, a three dimensional transient numerical model of flow and temperature field of the plasma arc welding molten pool with a moving arc is established.

本文根据流体力学、流体动力学及传热学理论，建立了运动等离子弧作用下焊接熔池流场、温度场的三维瞬态数值分析模型。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样