“convex down（ward）”概念、定义、翻译-科学时代

单词	convex down（ward）
释义	数学词汇手册 convex down（ward）下凸的
随便看	shelving shelving Shema shen sheng Shenyang Imperial Palace Museum Shenzhen Stock Exchange Shenzhen Stock Exchange--Shenzhen Stock Exchange（SZSE） Shenzhen Stock Exchange (SSE) Shenzhen Stock Exchange（SZSE） she oak Shepard shepherd(ing) satellite Shepherd of Hermas shepherd's needle shepherd's pie shepherd's pipe shepherd's purse shepherd's purse shepherd's purse shepherd's-purse shepherd's trade shepine Sheppard diagram Sheppard's correction

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。