“周期”概念、定义、翻译-科学时代

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。

单词	周期
释义	请查阅周期--循环
随便看	coloured race coloured reclaim coloured rubber coloured silk coloured smoke coloured stainless steel coloured story coloured tree coloured version of facts coloured woodcut coloured wood engraving colour effect colour-encoded focused image hologram colour enhancement colour enhancement colour enhancement colour equation colour equation colour equation colour etching colour etching colour fastness colour fastness colour fidelity Colour Field