该系统以弧长作为操作量，改变每个周期的脉冲峰值电流的宽度，以达到对焊接弧长控制的目的。
The arc length was taken as the manipulated quantity in the system and the peak current width of welding pulse was varied.
该系统以弧长作为操作量，改变每个周期的脉冲峰值电流的宽度，以达到对焊接弧长控制的目的。
The arc length was taken as the manipulated quantity in the system and the peak current width of welding pulse was varied.
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