“Chalcolithic Age”概念、定义、翻译-科学时代

单词	Chalcolithic Age
释义	人类学词汇手册 Chalcolithic Age 红铜石器时代，铜石并用时代
随便看	manifest import and export manifest of cargo manifest of cargo in transit manifest of shipment manifest reference number manifest role manifest status manifest ton manifest trait manifest variable manifold manifold manifold manifold classification manifold classification manifold connector manifold exhaust manifold flow manifold heater manifolding manifold of electronic states manifold of excited states manifold paper manifold pressure manifold pressure gauge

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。

Chalcolithic Age