“mental arithmetic”的概念、定义、翻译、参考文献-科学参考

单词	mental arithmetic
释义	mental arithmetic 心算
随便看	kilovoltmeter kilovolt peak kilovolt peak value kilowatt kilowatt-day kilowatt-hour kilowatt-hour meter kilowatt hour metre kilowatt-hour (即千瓦小时) kilowatt loss kilowatt meter kilowatt of eletctric energy (KWE) kilowatt output kilowatt-year kilrr-attenuation kilve Kimberley horse disease kimberlite Kimeridge clay Kimeridge coal Kimmelstiel's disease Kimmerian (stage) Kimpton-Brown tube kimzeyite kin

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。