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ducol-punched card
meaning in English
每列多孔卡片
每列双穿孔卡片
每行多孔卡片
Related Words
ducol steel
ducol punched card
alphabetical punch
ainsworth punch
segmented punch
interstage punch
rocket punch
punched needle
die punching
reproducing punch
ducol punched card
ducol steel
ducol-punched card system
ducolege
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