查询词典 analytic arc

In order to avoid or reduce arc fault hazard,the authors established an arc fault detecting test system with the method of power spectral analysis to study the early acoustic characteristics of fault arc ,and extracted the sound signature of early fault arc by using power spectrum analysis.

为了避免或减少故障电弧的危害，笔者建立了故障电弧探测试验系统，采用功率谱分析的方法对故障电弧的早期弧声特性进行了试验研究，提取出故障电弧的早期弧声特征信息。

Results of experiments under different conditions show that, compared with arc electrical signal and arc light signal, arc spectrum signal is of more advantageous property. It can not only detect short-circuit metal transfer, but also more effectively detect droplet in free transfer mode than electrical signal. It can not only detect the droplet transfer in the CO〓 welding, but also can detect spray transfer in Ar welding with advantage over arc light signal. Especially, its outstanding capability of detecting steam spray transfer where other approaches fail, shows that are spectrum information has the utmost signal quality in metal droplet transfer detecting.

多种工艺条件下的对比实验表明，与电弧电信号及光强信号相比，电弧光谱信号具有更为优越的信号品质，其不仅可以检测熔滴短路过渡而且优于电信号可以有效地检测自由过渡；不仅可以检测活性气体保护条件下的熔滴过渡，而且优于光强信号可以检测惰性气体保护条件下的喷射过渡，特别是其可以实现熔滴射流过渡的检测，解决了这一用其它信号无法克服的难题，体现出电弧光谱信息在熔滴过渡研究中所独具的优越性。

The company already has strong manufacturing capabilities and improve the detection equipment and instruments, has introduced products that have BX1, BX3, BX6 Series AC arc welding machine, ZXE1 Series AC-DC dual-use arc welding machine, WS series of manual TIG welding machines directly, LGK8 series plasma cutting machine, NBC series of carbon dioxide gas shielded welder, ZX5 Series Thyristor rectifier arc welder, ZX6 series three-phase rectifier arc welding machine, Products exquisite workmanship, excellent performance, reasonable structure, novel modeling and at the same time, the company invested in the continuing strength in science and technology and the use of foreign technology to market.

公司已具有雄厚的制造能力和完善的检测设备及手段，先后推出的产品有BX1、BX3、BX6系列交流弧焊接机，ZXE1系列交直流两用弧焊机，WS系列手工直接钨极氩弧焊机，LGK8系列等离子切割机，NBC系列二氧化碳气体保护焊机，ZX5系列晶闸管整流弧焊机，ZX6系列三相整流弧焊机，产品工艺精湛，性能优良，结构合理，造型新颖，同时，公司在不断的投入科技力量，并采用国外技术将产品投放市场。

The company owns a professional team of engineering technicians experienced in the research, design and development of welding equipment, complete processing and manufacturing facilities, advanced designing, testing and detecting means, specializing in the production of seven major categories, eighteen series and about one hundred models of welding equipment like various AC arc welders, DC arc welders, argon arc welders, CO2 gas welder, submerged arc welders, resistance welders and air plasma cut-off machines.

公司拥有一支多年从事焊接设备研究、设计、开发的专业工程技术人员队伍，具有完备的加工制造条件，先进的设计和试验检测手段，专业生产各类交流弧焊机、直流弧焊机、氩弧焊机、CO2气体保护焊机、埋弧焊机、电阻焊机、空气等离子切割机等七大类十八个系列近百个型号规格的焊接设备。

The mathematical model of plasma arc jet velocity at the exit of orifice logically combines the structural sizes of orifice with the plasma gas flow rate, the temperature of plasma arc at the exit of orifice, intensity of ionization and the force of arc pinch effect, by which the velocity of plasma arc jet can be estimated.

当喷嘴结构参数，离子气流量一定时，等离子弧在喷嘴出口处的温度和电离度的增加能使射流的喷嘴出口速度显著增加，而电磁压缩力使射流的喷嘴出口速度增加得较少。

Switching arc can be thought as a column because of its self-magnetic field pinch effect. Arc column is deformed by magnetic force that produced by circuit current flow. If the arc image was acquired from a orthongonal direction to arc column deformation force.

在分析低压电器开关电弧的低温等离子体特性、弧柱磁压缩效应的基础上，提出了基于电弧图象采集和非均匀有理B样条曲面拟合相结合的开关电弧可视化仿真模型。

However, at this time the French court nobles and Charles VII's generals are afraid of Joan of Arc's forces grow, they are afraid of the people worse than the British, on the deliberate murder of Joan of Arc. 1430, Joan of Arc was betrayed; May 29, 1431 morning, after Joan of Arc in the subject of torture, in the city of Rouen were burned alive, the ashes were put into the Seine, the death was under 20 years of age

但是，此时的法国宫廷贵族和查理七世的将军们却害怕贞德的势力壮大，他们害怕人民比英国人厉害，就蓄意谋害贞德。1430年，贞德被出卖；1431年5月29日上午，贞德在备受酷刑之后，在卢昂城下被活活烧死，骨灰被投入到了塞纳河中，死时还不满20岁

Plane analytic geometry is a important content in the mathematics curriculum of high school, which embodies powerful function of analytic method and algebraic method in the depicting curve. It reflects important idea of the combination of number and figure. Learning the course is very important for students to improve mathematics thought ability. Teachers and students are engaged in teaching and learning by the textbook, so it is necessary to analyse plane analytic geometry textbook.

平面解析几何是高中数学课程中的重要内容之一，它体现了解析方法和代数方法在刻画平面曲线方面的强大作用，反映了数形结合的重要思想，学习这部分内容对提高学生的数学思维能力具有十分重要的价值，师生正是通过教材这一载体从事教学和学习活动的，因此，很有必要对平面解析几何教材进行分析。

Weierstrass took the concept of "analytic Gebilde" as basic constitution to analytic continuation in order to access to integer analytic function by local ones.

魏尔斯特拉斯以"解析映射"概念为基本构成，进行解析延拓，从而实现由局部获得整体解析函数。

The content of this course is: analytic function (the definition of analytic function, elementary functions, etc.), conformal mapping (the definition if conformal mapping, fractional linear functions, elementary mappings, etc.), complex integration (Cauchy's integral formula, Cauchy's theorem, etc.), Series (Laurent Series, singularities, local property, etc.), residues and its applications (the Residues Theorem, integration by residues, the Argument Principle, the Maximum Principle, Schwarz's Lemma, etc.), analytic continuation and harmonic functions, etc.

本课程内容主要包括：解析函数(解析函数的定义、初等函数等)、共形映射(共形映射的定义、分式线性变换及初等映射等)、复积分(Cauchy 积分公式、 Cauchy 定理等)、级数(Laurent 级数、孤立奇点、局部映射等)、留数及其应用(留数定理、利用留数计算积分、幅角原理、最大模原理、 Schwarz 引理等)、解析开拓和调和函数等内容。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。