“negation”的概念、定义、翻译、参考文献-科学参考

单词	negation
释义	negation [nǝ`gā·shǝn] ^MATHEMATICS The negation of a proposition P is a proposition which is true if and only if P is false; this is often written ~ P. f ¹
随便看	photographic interpretation photographic magnitude photographic meteor photographic objective photographic photometry photographic plane photographic recording photographic sound recorder photographic sound reproducer photographic surveying photographic zenith tube shore fire-control party Shore hardness shore ice shore lead shoreline shoreline cycle shoreline-development ratio shoreline of depression shoreline of elevation shoreline of emergence shoreline of submergence shore party shore platform shore polyn'ya

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。