“punch”的概念、定义、翻译、参考文献-科学参考

单词	punch
释义	punch [pǝnch] ^{COMPUTER SCIENCE} 1. A device for making holes representing information in a medium such as cards or paper tape, in response to signals sent to it. 2. A hole in a medium such as a card or paper tape, generally made in an array with other holes (or lack of holes) to represent information. ^{DESIGN ENGINEERING} See <<nail set>> ^{MECHANICAL ENGINEERING} A tool that forces metal into a die for extrusion or similar operations.
随便看	roll bar roll cage roll cloud roll compacting roll control roll crusher rolled glass rolled gold rolled joint roller roller analyzer roller bearing roller bit roller cam follower roller chain roller coating roller cone bit roller conveyor roller drying roller gate roller-hearth kiln roller leveling roller mill roller printing roller pulverizer

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