“harmonica”的概念、定义、翻译、参考文献-科学参考

单词	harmonica
释义	harmonica Encyclopedia 艺术学乐器（旧）释 harmonica口琴自由簧气鸣乐器。
随便看	problem teaching problem tracking problem with constraints problem with equality constraints problem with inequality constraints problem youth problem库拉托夫斯基闭包补问题 probléme des menages probléme des rencontres proboscis monkey proboscis receptacle Proca equation procaine procambium procamera procarp procaryote procaryotic cell procategory procedural procedural algorithmic language procedural animation procedural bias procedural characteristics procedural control

科学参考收录了854744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。