“J”概念、定义、翻译-科学时代

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

单词	J
释义	请查阅J--努克斯
随便看	positive pole material positive politeness strategy positive-positive printing process positive predictive value positive prescription positive pressure positive pressure positive pressure positive pressure oxygen system positive presupposition positive print positive pulse positive punishment positive quantity positive ray positive ray positive reactivity positive realness positive recurrent state positive reference group positive regard positive reinforcement positive reinforcement positive reinforcement positive reinforcement