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1. The welding machine rotates the workpiece to ensure a good fit.
焊接机器旋转工件以确保良好的配合。
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2. During welding, the welder rotates the welding rod to create a strong bond.
在焊接过程中，焊工旋转焊条以形成牢固的连接。
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3.The welding process requires precise rotation of the workpiece and the welding rod.
焊接过程需要精确地旋转工件和焊条。