“Datuotou Culture”的概念、定义、翻译、参考文献-科学参考

单词	Datuotou Culture
释义	Datuotou Culture Encyclopedia 历史学大坨头文化（见夏家店下层文化）释 Datuotou Culture大坨头文化中国燕山南麓青铜时代考古学文化。
随便看	positive Hermitian operator positive homogeneous function positive hull positive image positive index of inertia positive infinity positive integer positive integral kernel positive interaction between nutrients positive ion positive ion, cation positive ion mode positive kernel positive kurtosis positive leap second positive lens Positive likelihood ratio positive limit point positive limit set positive linear functional positive linear operator positive link positive literal positive logic positive logical calculus

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。