Pick up the WELDING TORCH on the floor next to the right arch pillar.

拿起旁边的地板上拱的权利支柱焊炬。

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And the welding pool vibration equation is set up.

建立了焊接熔池波动方程。

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And the welding pool vibration equation is set up.

建立了焊接熔池波动方程。

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