“port atlas”的概念、定义、翻译、参考文献-科学参考

单词	port atlas
释义	port atlas Encyclopedia 工学海图集释 port atlas港口图集介绍海区港口分布和港口航海环境、航运能力等情况的专题海图集。
随便看	positive semi-definite quadratic form positive semi-definite rational function positive semigroup positive semiorbit positive semi-trough positive sense positive sense single-stranded RNA virus positive sequence positive series positive side positive sidelight positive sign positive skewness positive solution positive species interaction positive spinor positive staining positive strain energy positive strand positive subspace positive supportive reaction positive (symmetric) operator positive symmetric operator positive system of roots positive term

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。