zone punch
Of a six-sided prism: truncated on the lateral edges, and acuminated on the extremities with six planes.
(zoology) Any bird which has the toes bordered by membranes.
(computing) A hole punched (normally in the top two or three positions) of a punched card in addition to another in order to designate a different (sometimes related) character or to add a plus or minus sign
Alternative form of velvet bean
正の指数を示すために、作業者はパンチカードの上部にゾーン打ち抜き穴を追加した。
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