“operetta”的概念、定义、翻译、参考文献-科学参考

单词	operetta
释义	operetta Encyclopedia 艺术学〔音乐体裁样式〕释 operetta轻歌剧音乐体裁样式的一种。
随便看	regular boundary point regular branch regular budget regular canonical system regular cardinal regular cardinal number regular category regular cell complex regular chain regular character regular circular cone regular circular cylinder regular circumscribed polygon regular class regular class of divisors regular closed curve regular closed set regular closed subspace regular closed ultrafilter regular closure regular cluster regular cluster of galaxies regular coloring regular commutator regular compensation

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。