“正镜”概念、定义、翻译-科学时代

单词	正镜
释义	天文学词汇手册正镜 circle left
随便看	grade grade grade grade grade grade grade grade attainment grade change point grade chevron grade compensation grade correction grade correlation grade crossing -graded graded graded aggregate pavement graded bedding graded bedding graded colour tint graded commission graded deposit grade definition graded exercise graded filter

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。