punched hole的用法和樣例：
例句
- One of the horizontal lines on a punched card.
穿孔卡片上的水平行。 - A device which reads data from punched cards and sends them to the computer.
從穿孔卡片上讀出數據送入計算機的一種裝置。 - The paper presents the principle of no burr doub le-faced striking hole and work process.
介紹了無(wú)毛刺雙面沖孔的原理及手把體模鍛件雙面沖孔的工作過(guò)程。
