17)Lock Stitch(锁针) - 1) Commonly referred to as a lock-down or tack-down stitch, a lock stitch is formed by three or four consecutive stitches of at least a 1mm movement. It should be used at the end of all columns, fills and any element where jump stitches will follow, such as color changes, machine or manual triming or the end of a designs. May be stitched in a triangle or in a straight line. 2) Lock stitch is also the name of the type of stitch formed by the hook and needle of home se[收起]