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The needle pierces the two pieces of material, carrying a loop...
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The rotating hook passes under the lower thread. The point of ...
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The rotating hook pulls the upper thread through the ascending...
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The lower thread is still stationary as the needle rises out o...
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One side of the loop of upper thread passes behind the bobbin,...
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The upper thread passes over the bobbin and loops around the l...
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The loop of the upper thread slips off the point and catches o...
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A stitch form when the upper thread slips off the hook and loc...
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