作为评价触头的性能，不能单一地比较其燃弧时间的长短，尚应全面评价其分断电弧能量和材料侵蚀率。
When we evaluate the property of contact materials, we should not only compare thier arc time, but also compare thier erosion rate of materials and arc energy.
电弧电流和涂层厚度之间有一定的交互作用。涂层孔隙率是影响涂层性能的主要原因。
It was shown that the main technological parameter affecting the performance of the coating was arc current, and then the thickness of the coating.
提高电弧炉炼钢生产率主要基于以下几项新技术，包括改善电弧炉电效率、强化供氧技术、智能控制技术（专家系统）等。
The primary new technologies that improve the productivity of EAF mainly include EAF power input technology, oxygen input technology and EAF intelligent control technology(expert system).
近几年来，电弧炉炼钢生产率有较大的提高。
The electric arc furnace steel-making productivity has gained rapid progress in the recent years.
本研究以电浆电弧为加热源蒸发钨靶材，并藉由气凝合成机制，外加一套吹气装置制备氧化钨奈米棒，分别探讨腔体压力与奈米棒平均直径及产率的关系。
In the present study, tungsten oxide nanorods were prepared by a plasma arc gas condensation technique where a gas nozzle was introduced to provide blowing gas.
其综合作用使碳极氩气拘束电弧堆焊稀释率低，合金元素过渡系数高。
The synthesis results are that the dilution rate of surfacing of carbon electrode arc constrained by argon is low and the transfer coefficient of alloy elements is high.
作者认为其稀释率低与电弧温度分布及压力分布均匀、温度适中、电弧气氛具有一定还原性的特点有关。
It is regarded that the lower dilution rate is related to homogeneous distribution of temperature and pressure of the arc and deoxygenization of the arc gas.
表面粗糙度有一个最佳值，在这个表面粗糙度下电弧能量最小、质量磨损率也最小。
There is an optimum surface roughness which will produce minimal arc energy and minimal wear rate.
对本质安全电感电路，最小建电弧电压能反映电路的建弧特性，电流变化率能反映电路的电感特性。
For an inductive intrinsically safe circuit, minimum arcing voltage shows the arcing characteristics and current reducing rate shows the inductive characteristics.
为满足高生产率和现代电弧炉的需要，绝缘和控制尚须进一步改进。
But, its insulation and control should be improved furthermore to meet the needs of high productivity and modernization of the electric arc furnaces.
得到电弧放电瞬间每一模型下的电流变化率和电弧电压。
Arc current reducing rate and arc voltage at the time of arc discharging are established for every mathematical model.
电弧或溅射离子镀高的离化率为脉冲工艺提供了最好的应用条件。
Arc ion plating or magnetron sputtering provides the best application condition for pulse technique.
因此控制焊接电弧弧长的稳定性，对保证焊接产品的质量和提高劳动生产率都有重要的意义。
Therefore, the control of the stability of the arc length is meaningful for the welding quality and productivity.
结果表明，熔池表面和底部的温度都低于电弧焊，这是造成低稀释率的根本原因；
The result shows that the temperatures of molten pool surface and bottom are lower than those ones in arc welding. This is main cause of formation of low dilution rate.
给出了具有抛物形电导率分布的电弧螺旋不稳定性的一个简化线性分析，得到了显式解析解。
A simplified linear analysis of the helical instability of arc plasmas is given. Explicit analytic results are obtained.
给出了具有抛物形电导率分布的电弧螺旋不稳定性的一个简化线性分析，得到了显式解析解。
A simplified linear analysis of the helical instability of arc plasmas is given. Explicit analytic results are obtained.
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