“punched card”的概念、定义、翻译、参考文献-科学参考

单词	punched card
释义	punched card Encyclopedia 管理学情报存储技术释 punched card穿孔卡片由薄纸板制成，用孔洞位置或其组合表示信息，通过穿孔或轧口方式记录和存储信息的方形卡片。
随便看	precise code precise cooperative real-time positioning precise data precise definition precise design of bridge precise distance measurement precise engineering control network precise ephemeris precise ephemeris service precise feeding precise interrupt precise levelling precise location-based services precisely unless precise mechanism installation measurement precise orbit determination precise orbit determination of navigation satellites precise point positioning precise positioning service precise ranging code precise regulation and control precise statement precise time and time interval precise traversing precise trigonometric leveling

科学参考收录了854744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。