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![PDF] Influence of Root Gap and Tack Weld on Transverse Shrinkage during Welding | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/10536105d84131f9295853abbd7420afbfff57a1/5-Figure10-1.png "PDF] Influence of Root Gap and Tack Weld on Transverse Shrinkage during Welding | Semantic Scholar")