全熔透焊缝不存在包角的问题。

With a full pen weld, the question of "return" doesn't come up.

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从而可以更好地控制全电熔窑中的热点。

Therefore the hot spot in the all electric melting furnace could be well controlled.

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从而可以更好地控制全电熔窑中的热点。

Therefore the hot spot in the all electric melting furnace could be well controlled.

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