双针四线拷边，双针四线包边的英文

needles threads overedge stitch

• 双:    two; twin; both; d ...
• 针:    needle
• 四线:    four-wire; four-st ...
• 拷边:    piping; bind off
• 四:    four
• 线:    thread; string; wi ...
• 包边:    bordure; edge; tip ...