“availability (ratio)”的概念、定义、翻译、参考文献-科学参考

单词	availability (ratio)
释义	availability (ratio) 利用率
随便看	river boat river-borne material river bottom river bottom protection river bottom sediment river branch river branching river breathing river cable river cadaster river canalization river capture river capture (河流袭夺) river cascade project river channel river channel cross section river channelization river channel straightening river characteristics river classification river cliff river confluence river control river craft river crossing

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。