“prehistoric cities in the Chengdu Plain”的概念、定义、翻译、参考文献-科学参考

单词	prehistoric cities in the Chengdu Plain
释义	prehistoric cities in the Chengdu Plain Encyclopedia 工学〔早期聚落〕释 prehistoric cities in the Chengdu Plain成都平原史前城址中国新石器时代末期或铜石并用时代（公元前2500～前1600）分布于四川盆地川西平原地区的宝墩村文化城邑遗址的群落。位于四川省成都平原的岷江冲积扇上。
随便看	quadratic criterion quadratic curve quadratic curve discriminant quadratic cylinder quadratic dependence quadratic deviation quadratic diameter quadratic differential quadratic discriminatory analysis quadratic divergence quadratic domain quadratic dual quadratic dual problem quadratic dual space quadratic effect quadratic eigenvalue problem quadratic electro-optical tensor quadratic electrooptical tensor quadratic electro optic effect quadratic electro-optic effect quadratic element quadratic equation quadratic equation with one unknown quadratic error quadratic estimator

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。