“管壁相对粗糙度”概念、定义、翻译-科学时代

单词	管壁相对粗糙度
释义	市政工程词汇手册 relative roughness of pipe inside surface 管壁相对粗糙度
随便看	knowledge-based industry knowledge-based pay knowledge-based pay knowledge-based system knowledge base edit knowledge base expert system（KBES） knowledge base (KB) knowledge base (KB) knowledge base--knowledge base (KB) knowledge base management system knowledge base management system (KBMS) knowledge base of related-trend knowledge base system knowledge box knowledge broker knowledge by inference knowledge capital knowledge carrier knowledge chain knowledge classification knowledge classification knowledge collection knowledge compilation knowledge construct knowledge creation

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

relative roughness of pipe inside surface