The second is, when steel is welded by means of VPTIG of argon, the changes in current, voltage and arc shape.

第二部分研究了在氩气作保护气体的情况下，用变极性TIG焊方法焊钢时，焊接电流、电压的变化情况和电弧形态的变化。

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The third is, when Al is welded by means of VPTIG method of helium, the changes in current, voltage and arc shape.

第三部分研究了在氦气作保护气体的情况下，用变极性TIG焊方法焊铝时，焊接电流、电弧电压的变化情况和电弧形态的变化。

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With high speed camcorder system and digital oscillograph, this paper investigated the electric arc shape of lime titania type twin electrode.

用高速摄像系统及数字示波器对双电极钛钙型碳钢焊条的电弧形态进行了研究。

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Suzuki showed a patient structural command, giving an arc-like shape to the Kyrie by waiting a hundred or so bars before applying a substantial crescendo.

NEWYORKER: The Book of Bach

The characters swim in data, and their relationships to it shape the arc of the plot, and thus, the fate of the United States.

FORBES: 'Homeland' and the Age of Information Overload