“biconditional”的概念、定义、翻译、参考文献-科学参考

单词	biconditional
释义	biconditional 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。 Mathematics biconditional双条件的；双条件联结词
随便看	two-dimensional transformation two dimensional turbulence two dimensional ultrafast spectroscopy two-dimensional ultrafast spectroscopy two-dimensional vector space two-dimensional vorticies two dimensional waveguide two-dimension design of concentrators two-dimension photometry two dimension semiconductor two-dimension semiconductor two-dimentional electron gas two-disk phosphoroscope two-D NMR logging Two Dramatic Works of Li Ciming two-drift hypothesis two-ears theorem two electrode system two-electrode system two electron transfer two-electron transfer two element design two-element interferometer two-element intersection structural theory two-element radio interferometer

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。