['The', 'flax-hackling', 'machine', 'is', 'a', 'pivotal', 'piece', 'of', 'textile', 'machinery', 'used', 'in', 'the', 'processing', 'of', 'flax', 'fibers', '.', 'It', 'employs', 'a', 'series', 'of', 'sharp', 'hackling', 'rods', 'that', 'comb', 'through', 'the', 'flax', ',', 'separating', 'the', 'fibers', 'from', 'the', 'woody', 'stalks', '.', 'The', 'brush', 'and', 'doffer', 'mechanism', 'is', 'essential', 'for', 'maintaining', 'the', 'cleanliness', 'of', 'these', 'hackling', 'rods', ',', 'ensuring', 'optimal', 'performance', 'by', 'removing', 'any', 'accumulated', 'debris', '.', 'Regular', 'maintenance', 'of', 'the', 'brush', 'and', 'doffer', 'not', 'only', 'prolongs', 'the', 'life', 'of', 'the', 'machine', 'but', 'also', 'enhances', 'the', 'quality', 'of', 'the', 'flax', 'fibers', 'produced', '.']
[[1, 2, 'Textile Machinery'], [24, 25, 'Textile Machinery'], [41, 43, 'Textile Machinery']]