“调和级数”概念、定义、翻译-科学时代

单词	调和级数
释义	工程与技术词汇手册 harmonic series 调和级数
随便看	abrasion abrasion abrasion coefficient abrasion cycle abrasion degree abrasion drill abrasion hardness abrasion hardness abrasion index abrasion loss abrasion machine abrasion mark abrasion of blown sand abrasion of coin abrasion performance abrasion performance abrasion plane abrasion platform abrasion platform abrasion platform abrasion platform abrasion platform abrasion platform abrasion-proof abrasion-proof material

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。

harmonic series