“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	hypochnoid hypocholesterolemia hypochondria hypochondriac hypochondriac region hypochondriasis hypochromia hypochromicity hypochromic microcytic anemia hypocleidium hypocone Hypocopridae hypocoracoid hypocotyl hypocrateriform Hypocreales hypocrystalline hypocycloid Hypodermatidae hypodermic needle hypodermic syringe hypodermis hypodermoclysis hypodontia hypo eliminator

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。