“前人”的概念、定义、翻译、参考文献-科学参考

单词	前人
释义	前人 predecessor forefather
随便看	drum drum armature drum axle drum back-sight mechanism drum boiler drum brake drum buffer drum buffer clear drum cam drum camera drum capacity drum cell drum cobber drum controller drum conveyer drum cooler drum cutter drum cylinder crystallizer drum dial drum digger drum digit path drum disk rectifier drum drier drum drive drum driver

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。