It has ending arc function, after the welding of thick welding wire, loosing sensitive switch, the voltage of arc and welding torch.

设有收弧功能，粗焊丝焊接后，松开枪头微动开关，送丝与电弧电压自动衰减填满弧坑。

youdao

He would glide in the mountains above Zermatt, often alone and often at night, forbidden even to switch on a torch.

ECONOMIST: Obituary

This means you can fly through a room as Storm, switch to the Hulk and smash an enemy, then flame on as the Human Torch.

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