“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	statΩ stat℧ stauractine staurolite Stauromedusae Staurosporae staurotide stave stay staybolt stayed-cable bridge stay time STD STDM STD recorder steadiness steadite steady bearing steady flow steady pin steady rest steady state steady-state cavitation steady-state conduction steady-state creep

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。