“social sport instructor”的概念、定义、翻译、参考文献-科学参考

单词	social sport instructor
释义	social sport instructor Encyclopedia 教育学群众体育学释 social sport instructor社会体育指导员中国在竞技体育、学校体育、部队体育以外的群众性体育活动中，从事技能传授、锻炼指导和组织管理工作的人员。
随便看	principal moment principal moment of inertia principal net of a mapping principal net of the flow principal neutral point principal nilpotent orbit principal norm principal normal principal normal complex principal normal form principal normal line principal normal plane principal normal section principal normal surface principal normal vector principal number principal nutation principal object principal offender principal of land laws principal of least dissipation of energy principal open set principal optical axis principal orbit principal orbit type

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。