“normal derivative”的概念、定义、翻译、参考文献-科学参考

单词	normal derivative
释义	normal derivative 法向导数
随便看	beam guide beam handling beam hanger beam height beam holder beam holding beam hole beam impedance beam index color picture tube beam index colour picture tube beam indexing tube beam-indexing tube beam indicator beaming beaming effect beam instability beam intensity beam intensity ratio beam interferometer beam knee beam knife beam-landing screen error beam lead beam-lead bonder beam-lead bonding

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。