“乱石拱”的概念、定义、翻译、参考文献-科学参考

单词	乱石拱
释义	乱石拱 rustic arch rubble arch
随便看	grading instrument grading into uniform size grading limit grading machine grading machinery grading method grading of aggregate grading of aggregates grading of grog grading of river bank grading of soil grading of timber grading outfit grading plant grading principle grading reel grading resistance grading ring grading roller grading rules grading screen grading shield grading sieve grading standards grading tool (测定磨具硬度的工具)

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。