“optional”的概念、定义、翻译、参考文献-科学参考

单词	optional
释义	optional Mathematics optional可选的^†
随便看	Evans’ rule Evans法则 evaporability evaporant evaporated milk evaporated residua evaporating dish evaporating gaseous globule evaporating tube evaporation evaporation coating evaporation coating equipment evaporation coefficient evaporation-concentration evaporation curve evaporation equilibrium evaporation from phreatic water evaporation from soil evaporation from soils evaporation from water surface evaporation-induced self-assembly evaporation ion pump evaporation loss of oil products evaporation model evaporation nucleon

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。