“port system”的概念、定义、翻译、参考文献-科学参考

单词	port system
释义	port system Encyclopedia 理学港口体系释 port system港口体系一定地域内不同类型、等级和职能的港口或码头的空间分布与组合。
随便看	operator-differential operator-differential equation operator domain operator endomorphism operator equation operator ergodic theorem operator extension problem operator function operator gene operator grammar operator group operator homomorphism operator ideal operator identity operator index operator inequality operator-irreducible representation operator-isomorphic operator isomorphism operator isomorphy operator loop operator mean operator method operator module operator monotone

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。