| 单词 | hand punch |
| 释义 | hand punch [`hand ´pǝnch] COMPUTER SCIENCE A device which punches holes in punch cards and moves the cards as they are punched as a direct result of pressure on the keys of a keyboard, and which requires feeding and removal of cards by hand, one at a time. Also known as hand-feed punch. DESIGN ENGINEERING A hand-held device for punching holes in paper or cards. |
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