“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	pinch graft pinch grasp pinch-off pinch-off blades pinch-off voltage pinch pass pinch point pinch resistor pinch roller pinch trimming pinch-tube process pincushion distortion pin diode pine pineal body pineapple pineapple fiber pinene pine needle oil pinene hydrochloride pine nut pine oil pine oleoresin piner pine tar

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。