“President's Day”概念、定义、翻译-科学时代

单词	President's Day
释义	旅游词汇手册 President's Day 总统日
随便看	natural convection natural convection natural convection natural convection natural convection air-cooled condenser natural convection air cooler natural convection recirculation natural cooling natural cooling natural coordinate natural coordinates natural coordinates natural coordinate system natural course of a river natural cover natural cracking catalyst natural crossing natural cross pollination natural crystal plane natural curing natural current natural current natural damping natural damping natural damping

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。