“formal operations stage”概念、定义、翻译-科学时代

单词	formal operations stage
释义	社会学词汇手册 formal operations stage 形式运思期
随便看	radio frequency welding radio-frequency（RF） radio fuze radio galaxy radio galaxy radiogaschromatography（RGC） radiogen radiogenetics radiogenetics radiogenic radiogenic radiogenic heat radiogenic helium radiogenic nuclide radiogram radiogram radiogram radiogramophone radiograph radiograph examination radiographic examination radiographic inspection radiographic inspection radiographic putty radiographic stereometry

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。