同义词
1)double point pass,复式山形穿经2)doublepointedtie-up; double-point,draw; doublepointdrafting,复式山形穿吊3)double-point draw; double point drafting,复式人字形穿综4)pointedtie,山形穿吊法5)andleddraft; reverseddraft; point,draw; returndraft; returnpoint,returnpass; herringbonedraft,diamondpass; diamonddraft,山形穿综法6)reperforator,reproducer,复式穿孔机
