“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	position vector position weight matrix position weight matrix, PWM positivation positive positive affine mapping positive aging positive analytic function positive and negative positive and negative energy plane wave solutions of Dirac equation positive and negative feedback modes of scanning electron microscope positive angle positive angle shot positive asymmetry positive bias positive boundary positive bounded operator positive braid positive bundle positive calculus positive chain complex positive channel metal-oxide-semiconductor circuit positive channel metal-oxide-semiconductor integrated circuit positive charge positive closure

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。