“signum”的概念、定义、翻译、参考文献-科学参考

单词	signum
释义	signum [`sig·nǝm] ^MATHEMATICS The real function sgn(x ) defined for all x different from zero, where sgn(x ) = 1 if x > 0 and sgn(x ) = -1 if x 0.
随便看	modified Lewis acid modified mean modified precision approach radar modified rayon modified refractive index modifier modifier gene modifier register modify modify structure modillon moding modiolus modula-2 modular circuit modular compilation modularity modular programming modular structure modulate modulated amplifier modulated carrier modulated continuous wave modulated Raman scattering modulated stage

科学参考收录了103327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。