“双条件式”的概念、定义、翻译、参考文献-科学参考

单词	双条件式
释义	双条件式 Encyclopedia 文学特指性释 biconditional双条件式对于任何命题P、Q而言，P是Q的充分必要条件，P成立时，Q成立；Q成立时，P成立，即P等价于Q的条件式。用符号“↔”表示。又称等值式。
随便看	Television of the Republic of Indonesia television opera television party television planning television poetry television program transfer system television promotion television prose television quyi television radio command combined guidance television rating television rating system in South Korea television reach television receiver television rhetoric television semiology television sketch television sports television studies television studio television synchronizing pulse television target affinity television target saturation television test card television test charts

科学参考收录了854744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。