“nucleus vowel”的概念、定义、翻译、参考文献-科学参考

单词	nucleus vowel
释义	nucleus vowel Encyclopedia 文学元音释 nucleus vowel主要元音复韵母中开口度最大、发音最响亮的元音，是韵母中不可缺少的主干成分。又称核心元音、韵腹。
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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。