“ungraded stream (river)”的概念、定义、翻译、参考文献-科学参考

单词	ungraded stream (river)
释义	ungraded stream (river) 未均衡河流
随便看	economic ruin game economics economic sanction economic satisfaction economic scene economic science economic section economic sector economic security economic selection cutting economic self-sufficiency economic separation economic series economic service life economic service period economic setup economics for development economic sheet economic short trees economic signals economic significance economic situation economic social overhead capital economic societies economic sociology

科学参考收录了1248194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。