['In', 'the', '19th', 'century', ',', 'the', 'calico-printing', 'machine', 'revolutionized', 'the', 'textile', 'industry', '.', 'One', 'of', 'its', 'crucial', 'components', 'is', 'the', 'engraved', 'roller', 'known', 'as', 'the', 'shell', '.', 'This', 'shell', 'allows', 'for', 'the', 'precise', 'transfer', 'of', 'intricate', 'designs', 'onto', 'fabric', ',', 'making', 'it', 'an', 'essential', 'part', 'of', 'the', 'printing', 'process', '.', 'Alongside', 'the', 'shell', 'are', 'other', 'significant', 'parts', 'of', 'the', 'machine', ',', 'including', 'the', 'color', 'trough', 'and', 'the', 'impression', 'roller', ',', 'which', 'work', 'together', 'to', 'ensure', 'the', 'designs', 'are', 'printed', 'efficiently', 'and', 'with', 'great', 'detail', '.']
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