“常年性河流”的概念、定义、翻译、参考文献-科学参考

单词	常年性河流
释义	常年性河流 Encyclopedia 工学〔主要名词〕释 perennial stream常年性河流常年流水不断的河流或受人类活动影响偶尔断流的河流。世界上绝大部分河流均为常年性河流。
随便看	dual statement dual-string well completion dual-structural Internet,dual-architecture Internet dual structure dual subdivision dual surface dual system dual system of higher education dual system of vocational education dual system university dual-task paradigm dual temperature exchange dual-temperature exchange dual tensor dual tessellation dual theorem dual theory dual throat vector control dual topological group dual transformation dual triangle dual-use land dual value identification method of archives dual variable dual variety

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。