“活封面”概念、定义、翻译-科学时代

单词	活封面
释义	图书馆、情报与文献学词汇手册活封面 case binding
随便看	sector sector sector address sector adjustment lending sectoral economic geography sectoral integration sectoral reciprocity sectoral trade agreement sectoral urban pattern sector boundary sector boundary sector chart sector dam sector focused cyclotron sector gate sectorial area sectorial index sectorial moment of inertia sectorial shutters sectorial stress distribution sector interleave sector interleave sectorization of function sector map sector model

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。