“trapdoor”的概念、定义、翻译、参考文献-科学参考

单词	trapdoor
释义	trapdoor [`trap¦dȯr] ^{BUILDING CONSTRUCTION} A hinged, sliding, or lifting door to cover an opening in a roof, ceiling, or floor.
随便看	memory storage memory switch memory trace memory tube memory twist memory typewriter numerical weather prediction numeric character numeric character set numeric coding numeric control numeric coprocessor numeric data numeric keypad numeric pad numeric pager numeric printer numeric processor extension numeric punch numeric variable Numididae nunatak nun buoy n-undecylic aldehyde N unit

科学参考收录了103327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。