Welding machine control unit is equiped with no power source arc start unit, CMOS, and high power switch.
该焊机采用“无源引弧器”引弧，引入CMOS、时基、大功率开关等集成电路进行弧焊自动控制。
At the start of the movie, an arc of plasma arises close to the surface and balloons outward into space.
影片开始时，等离子体的弧线上升接近太阳表面并向太空膨胀。
To take away the refining part of the steel making cycle off an electric arc furnace, which is discussed elsewhere, is an excellent start.
把炼钢周期中的精炼阶段从电弧炉中移走（这个问题将在别处加以讨论），是一个良好的开端。
A: Start by using a weld process that provides more control over heat input: short circuit transfer GMAW (" short arc "), pulsed GMAW, GTAW and pulsed GTAW.
答：首先用焊接过程提供更多控制热输入：短路转让的GMAW(“短弧”)脉冲gmaw焊接、氩弧焊和脉冲gtaw。
Cerium-Tungsten Electrode is a nonradiative and green product . It can start performing arc with a low current .
铈钨电极没有放射性污染，属于绿色环保产品，它仅用很小的电流就可轻松起弧，而且维弧电流也较小。
The author discusses the faults of the existing plasma cutting machine, difficulty to start arc and to transit from minarc to maxarc, then puts forward a new control scheme based on technical desires.
针对原等离子切割机存在的起弧困难和小弧到大弧的转移不连续的缺点，对原控制装置硬件结构和控制线路进行技术改造，使用结果表明：该装置运行可靠，起弧容易，控制效果好，并且提高了生产效率。
The author discusses the faults of the existing plasma cutting machine, difficulty to start arc and to transit from minarc to maxarc, then puts forward a new control scheme based on technical desires.
针对原等离子切割机存在的起弧困难和小弧到大弧的转移不连续的缺点，对原控制装置硬件结构和控制线路进行技术改造，使用结果表明：该装置运行可靠，起弧容易，控制效果好，并且提高了生产效率。
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