“空值”的概念、定义、翻译、参考文献-科学参考

单词	空值
释义	空值 null value null (NUL)
随便看	worm gear grease worm gear hob worm-gear hob worm-gearing worm gear milling mechine worm-gear oil worm-gears worm gear screw jack (WGSJ) worm grass worm grinder worm grinding machine worm hob worm hobbing machine wormhole worm housing worming wormkalk worm knotter worm lock worm mesh worm milling cutter worm milling machine worm pipe worm-pipe worm press

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。