繰くり出だし孔こう

noun

feed hole; sprocket hole

Technical term in computing and data processing for holes in punched tape or film used to advance the medium.

• 紙かみテープの繰くり出だし孔こうが破やぶれると、読よみ取とりが止とまってしまう。

  If the feed holes in the paper tape tear, reading stops.