科学时代-面向大众传播科学知识、科学方法、科学精神和科学思想的科学普及平台。

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。

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secular trend	secular trend	secular trend	secular trust	secular upheaval
secular upheaval	secular value	secular variable	secular variation	secular variation
secular variation	secular variation	secular virtue	secundine	secundum
secure	secure assessment	secure attention sequence	secure attention sequence (SAS)	secure attention sequence--secure attention sequence (SAS)
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secured note	secured party	secured transaction	secured transaction	Secure Electronic Payment Protocol