“John Jacob Astor”的概念、定义、翻译、参考文献-科学参考

单词	John Jacob Astor
释义	John Jacob Astor Encyclopedia 历史学美国历史释 John Jacob Astor阿斯特，J.J. （1763-07-17～1848-03-29）美国德裔商人。
随便看	fractional factorial design fractional-factorial design fractional flow equation fractional Fourier transform fractional frequency fractional function fractional gain error fractional heat fractional ideal fractional independent yield fractional inequality fractional integral fractional integral equation fractional integration fractional isotopic abundance fractionalize fractional life period fractional-life period fractional line fractional linear function fractional linear mapping fractional linear transformation fractional magnetic charge fractional mapping fractional melting

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。