“Ma Hengchang”的概念、定义、翻译、参考文献-科学参考

单词	Ma Hengchang
释义	Ma Hengchang Encyclopedia 历史学劳动模范释 Ma Hengchang马恒昌（1907-07-24～1985-07-18）中国机械工人，劳动模范。
随便看	periodic transformation periodic treatment periodic trend periodic variable periodic variation periodic variation of corona periodic vector periodic vibration periodic water flooding periodic water injection periodic waveguide periodic waveguides periodic zeta-function period inequality period integral periodization periodization of annual training Periodization of History periodization of multi-year training period lattice period length Period life table period-luminosity-color relation period-luminosity curve period-luminosity relation

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。