In order to obtain a more uniformity flow of the dc arc plasma, the large-scalearc hollow electrode plasma generator with an outer magnetic field is designed in this paper.
为了获得比较均匀的大面积直流电弧等离子流，设计了一种利用外磁场驱动电弧旋转的等离子发生器。
2
Formerly the arc length error for the insulation resistance instrument is defined by scalearc length. At present national standard determines that the percentage of indicated value expresses it.
绝缘电阻表以前是按标度尺弧长定义的弧长误差，现行国家标准规定以指示值的百分数表示。
3
A similar process occurs on a much smaller scale to gas surrounding a single star, forming the bow-shaped arc seen near the upper left side of the Cone.