电弧

On the other hand, the external ACMF increased the quantity and directionality of carbon particles, so the quantity and crystallization degree of MWCNTs in cathode depositions. When ACMF and catalyst were adopted at the same time, new cylinder-shaped structures were found in the cathode depositions.

对液体中电弧施加纵向恒定磁场，可以使向阴极表面运动的碳粒子数量增多、定向性增强，从而大大提高阴极沉积物中多壁碳纳米管的数量和晶化程度。

In the process of switching operation of 220kV primary equipment,the switch of motor power source tripped suddenly,and then electric arc occurred between the moving contact and stationary contact of disconnecting switch.

对一起因220kV一次设备在倒闸操作过程中，电动机电源开关突然跳闸，致使隔离开关动、静触头之间产生电弧，危及电网和设备安全的这一危险情况进行了分析，找出危险根源，强调执行反事故措施的重要性。

An electric arc welding machine shall be placed on an accessible location, such as in the vicinity of distribution board, and shall be installed on a rack or foundation at the sufficient height to prevent it from submerged by flood water.

电弧焊机要放置在易于操作的地方，比如配电箱附近，并且要安放在一定高度的支架或基础上，防止雨水浸入。

Metal frame and casings of welding machine and of engine-driven machine shall be effectively grounded.

电弧焊机和发动机驱动焊机的金属框架和外壳要进行有效地接地。

Without the arrestors, lightning could arc across the insulators that support power lines, causing interruptions and damaging other equipment.

如果没有避雷器，电弧能够通过那些包裹着电缆线的绝缘体，从而引发电力中断并损坏其他设备。

But recent years, after the widely use of power electronics equipment and influence of special loads such as electric arc stove and electrized railroad, the pollution in power system became much serious than before.

但是，由于近年来电力电子设备的大量使用，以及电弧炉、电气化铁路等负荷的影响，使得电力系统中的污染不断加重。

According to the calculation, an extra high current density exists at the leading edge owing to the arc thermal inertia.

由于电弧的热惯性作用，阳极中心电流密度变化前沿存在着尖峰。

The company was equipped with many kinds of equipments including: the Direct-Reader Spectrograph, Magnetic particle inspection and Ultrasonic testing, the Hydraulic Universal Testing Machine with Computer-Screen Display. Pendulum-lmpact Testing Machine, Large Metallographic Microscope, and Large vertical lathe, Mobile Face Milling Machine ect. The measurement, precision, the surface finish, property and the internal quality of the steel castings and the ductile irons are all company with national and international standards.

公司铸钢车间采用呋喃树脂砂造型工艺、电弧炉+LF精炼炉炼钢、抛喷丸表面处理、煤气热处理炉热处理，配备有德国康诚直读式光谱仪、磁粉探伤及超声波探伤、微机屏显万能材料试验机、冲击试验机、金相显微镜等检测设备和大型立车、移动式端面铣床等加工设备，铸件尺寸、精度、表面光洁度、机械性能和内部质量均符合国家和国际标准。

Have a 15-ton electric arc furnace, 15-ton AOD furnace, 3-ton electric-hydraulic hammer, air hammer, common lathe, CNC lathe, large-diameter end face lathe, vertical lathe, drilling and other production equipment more than 100 Units; the existing chemical composition analysis equipment, Portable Direct Reading Spectrometer alloy composition analyzer, SPECTRO desktop direct reading spectrometer, complete sets of metallographic analysis, ultrasonic flaw detector, magnetic particle flaw detector, universal tensile testing machine, impact tester, hardness testing, ultrasonic thickness testing equipment, etc., production fully equipped, perfect testing means, at home with the industry's leading annual production of alloy steel, stainless steel bar and forging material 30,000 tons, 5,000 tons of finished flanges.

拥有15吨电弧炉、15吨AOD炉、3吨电液锤、空气锤、普通车床、数控车床、大口径端面车床、立车、钻床等生产设备100多台；现有化学成份分析设备、便携式直读光谱合金成份分析仪、SPECTRO台式直读光谱仪、成套金相分析、超声波探伤仪、磁粉探伤仪、万能拉力试验机、冲击试验机、硬度试验、超声波测厚仪等检测设备，生产设备齐全，测试手段完善，在国内同行业领先，年生产合金钢、不锈钢棒材及锻材30000吨、成品法兰5000吨。

Gas shielded arc welding MIG welding is a highly efficient technology, its direct impact on the quality of wire feed welding quality.

气体保护熔化极电弧焊是高效焊接技术，其送丝质量直接影响焊接质量。

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。