“polite language”的概念、定义、翻译、参考文献-科学参考

单词	polite language
释义	polite language Encyclopedia 文学功能变体释 polite language礼貌语言广义上指传达礼貌信息的话语。狭义上则单指各种交际场合中说出的既合乎语言规则又合乎事理礼貌的言语。
随便看	closed chain closed channel closed circuit hydraulic system closed circular DNA closed circulating water system closed class closed combinatorial surface closed communication structure closed complex closed complex plane closed composition closed cone closed contour closed convex function closed convex functional closed convex hull closed convex hypersurface closed convex set closed convex surface closed covering closed current closed curve closed-curve problem closed cycle closed cycle engine

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。