“正阶步”概念、定义、翻译-科学时代

单词	正阶步
释义	工程与技术词汇手册 positive step 正阶步
随便看	thunderbird thunder box thunder-flash grenade thunder horn thunder machine thundershower thunderstick thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm electricity thunderstorm event thunderstorm flash thunderstreak discharge sensitivity measurement thunia Thurber, James Grover thurible thuricin thurifer thurification thurification Thuringian Stage thuringite thuringite

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。

positive step