电弧

But when there has the arc reigniting, the overvoltage will be much higher.

但是如果此时发生电弧重燃，产生的过电压值也越高。

An extremely hot flame can be produced from an oxyacetylene torch. For certain welds an electric arc is used.

氧乙炔焊炬可能会产生极其热的火焰，对于某些焊缝来说可能会用到电弧，在此方法中，电流通过两个电极，并且金属表面被置于两电极之间。

The long parallel rays slanting across the top of the above radio image are known collectively as the Galactic Center Radio Arc and jut straight out from the Galactic plane.

斜穿过这幅射电图像上方的的长平行线合称为银河系中心的射电弧，这些弧刚好从银盘穿出。

A parallel shift of calibrationcurves due to difference in micro-structure was observed in an arc source but notin a spark source.

用电弧作光源时，观察到组织结构的不同使定标曲线发生平移，用火花光源时这种现象并不显著。

The principles of the mechanism, electromagnetic induction photology , CCD visual sense, ultrasound, arc sensor, application and development are described in a systematical and an all-round way in this paper.

本文系统地、全面地论述了用于电弧焊接跟踪的机械、电磁感应、光学、CCD视觉、超声、电弧传感器的原理、应用及其发展。

Then, hardware and software designs of the measurement is detailedly explained, including phototube sensor's selection and characteristic parameter calculation, hardware circuit design, communication system design and so on.

文章还详细介绍了实现离线电弧检测系统的硬件组成设计和软件处理设计，包括检测器件的选型、特性参数设计、硬件电路设计、通信系统设计和软件处理系统设计。

After introducing 56Nb steel, in order to meet performance requirement of 56Nb steel fish plate on the railroad rail, the production technique of 56Nb steel fish plate has been adopted under the factory equipment conditions: 450 kg steel ingot is prepared by melting in 8 t arc furnace and casting at 1 570-1 580℃ which is heated to 1 250-1 270 ℃, trimmed to 185 mm×195 mm bloom after rolling by 600 series 2-stand rolling mill; then rolled 15 times by 600 series 2-stand rolling mill when steel ing

介绍了56Nb钢后，根据铁道接头夹板的性能要求并结合厂方的设备状况制定了56Nb钢鱼尾板材料的生产工艺：用8 t电弧炉冶炼，于1 570～1 580℃下铸成450 kg钢锭；将钢锭加热到1 250～1 270℃，经600系列2机架轧机5道次轧制后修整成185 mm×195 mm方坯；再将钢坯加热到1 050～1 150℃，由600系列轧机（2机架）共15道次轧制，用350系列（3机架）精轧机经3道次精轧成60 kg/m的鱼尾板材料，终轧温度约900℃。

Second, validated correctness of the theoretical point spectrum function derived in the former research to represent the aero-optic effects.

摘 要：针对气动光学效应所产生的红外图像模糊和偏移问题，首先对电弧风洞得到的吹风红外实验图片，计算其中的像偏移，得出像偏移主要是在迎风方向这一结论。

Through changing the preignition time and the excitation time of sparkle light source,electric arc light source and trace analyzing light source,the method shortening excitation period for analysis of mid of low alloy steel is studied.

研究了通过改变预燃时间，火花光源、电弧光源、痕量分析光源的激发时间来缩短激发周期进行中低合金钢分析的方法，通过实验将分析周期从34s缩短到23s，从精密度实验、稳定性实验、结果对照来看该方法是切实可行的，并取得了很好的经济效益。

Originating from the principles of projective and perspective transformation, the models of coordinate transformation between workpiece and camera with arbitrary angle of laser light and camera are presented.

对电弧光的干扰进行了深入的研究，建立了电弧干扰的光照模型；依据透视变换理论，给出了光源倾斜照射和摄像机倾斜接收情况下，被检测物体与摄像机之间的一般坐标变换数学模型。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。