“符号检验位”的概念、定义、翻译、参考文献-科学参考

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。

单词	符号检验位
释义	符号检验位 sign check indicator
随便看	punched bend punch(ed) card punched card punched card accounting machines punched cardcalculator punched-card calculator punched card computer punched-card control punched card controlled computer punched-card devices punched-card equipment punched card equipment punched-card field punched card for visual selection punched card input device punched-card jacquard mechanism punched card machine punched card machine (PCM) punched card method punched-card reader punched card reader punched-card recorder punched-card sorter punched-card system punched card system (PCS)