“key card punch”的概念、定义、翻译、参考文献-科学参考

单词	key card punch
释义	key card punch 卡片穿孔机密钥卡片穿孔机
随便看	airtight cover air-tight double glazing window airtight joint airtight machine air-tight machine air tightness airtightness airtightness test airtight packing air-tight screw pump airtight seal air-tight seal airtight separator airtight shaft seal air tight test pressure air time air tinting method air tired tractor air-to-air air-to-air guided missile air to air heat transmission coefficient air-to-air homing air-to-air intercept air-to-air laser ranging air-to-air missile (AAM)

科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。