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Distribution features for TIG welding arc ultraviolet spec tr um associated with various of welding parameters have been acquired, and inform ations of welding arc ultraviolet spectrum also have been analyzed.

针对焊接电弧紫外光谱信息的研究，研制了一套焊接电弧紫外光谱计算机采集和处理系统。利用此系统对TIG焊电弧紫外光谱进行了研究，成功地获得了不同焊接规范下的电弧紫外光谱频谱分布特征，并对此进行了分析。

On the basis of cognition of the potential significance of welding arc spectrum dynamic characteristics and with the destination to find out new sensoring method of metal transfer,this paper provided the parasynchronous principle and in turn verified the relationship between the pulses in the waveform of arc spectrum signals and metal droplet transfer with para high speed photography apparatus.

基于对熔化极气体保护焊电弧光谱信号动态特征重要意义的认识，以发现新的熔滴过渡传感方法为目的，本文提出准同步高速摄影法，设计了准同步光谱信号-高速摄影检测装置，验证了光谱信号波形中的脉冲是熔滴过渡所为，它们之间存在着确定的对应关系。

Arc plume emis— sion spectrum which fits the Planck blackbody radiation function by assuming T=4 350 K shows Swan band system of C2.The arc plasma temperature is about 4 300~4 400K,and the error is about 100K.

放电过程中的电弧等离子体光谱测试表明其中主要有C2分子的发射峰，光谱分布曲线与普朗克黑体辐射曲线中T=4 350 K的分布情况吻合，确定放电电弧等离子体温度约4 300~4 400k，测量误差约100 K。

A kind of acoustic phased arc array transmitter was designed for azimuthal radiation. 3D Finite difference method was used to calculate acoustic field in borehole formation generated by the acoustic phased arc array transmitter in fluid-filled borehole.

设计一种具有方位辐射特性的声波测井相控圆弧阵声波辐射器，采用三维有限差分法对其在井旁地层中产生的声场进行了数值模拟。

An acoustic phased arc array transmitter with azimuth radiation was designed. The acoustic field generated by the acoustic phased arc array transmitter in the borehole formation was simulated using the 3D finite difference method.

设计了一种具有方位辐射特性的声波测井相控圆弧阵声波辐射器，采用三维有限差分法对其在井旁地层中产生的声场进行了数值模拟。

Among them the quantity of submerged arc welder, flux recovery device, arc-striking device and wire-feeding mechanism are 2 sets/ each.

其中埋弧焊机、焊剂回收、导弧装置及送丝机构均为两套。

There are mainly 64 welding and cutting equipments as follows: 6 Automatic Arc Welding Machine (MZ-1000)、22 Carbon Dioxide Shielded Welder (NBC-500)、28 AC Arc Welder BX3-500, etc.

主要焊接切割设备共64台，其中：自动弧焊机(MZ-1000) 6台，二氧化碳保护焊机(NBC-500)共计22台，交流弧焊机（BX3-500等）共计28台。

Shanghai Peoples Welding Machine Manufactory is a professional state owned manufactory which produces welding equipment, whose products mainly include five large categories:DC arc welder, argon arc welder, air plasma cutter, resistance welder etc.

上海人民电焊机厂是一个专业生产焊接设备的国营企业。主要产品有交、直流弧焊机、氩弧焊机、空气等离子切割机，电阻焊机等五大类常用焊机。

Bedroom semi-arc before more : bedroom, arc-shaped side of the balcony wall causing irregular overall space.

半弧形卧室以前比较多：卧室中一面圆弧形的阳台墙造成了整体空间的不规则。

Firstly, the models of one unprotected circuit and three protected circuits were built and the formulas of arc energy for each circuit were given in this paper. Secondly, the experimental equipment of electrical life of relay was developed and the arc erosion status of contacts of breaking the inductive load with the four circuits was researched by experiments.

论文首先构建了无保护电路和3种有保护电路模型并给出了电弧能量的计算公式；然后研发了继电器电寿命实验装置并通过实验研究了上述4种电路中继电器开断感性负载时触点的电弧侵蚀情况。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新