“headmaster”的概念、定义、翻译、参考文献-科学参考

单词	headmaster
释义	headmaster Encyclopedia 教育学学校释 headmaster;principal校长国家教育行政部门或其他办学机构管理部门任命的学校行政负责人，是各类学校内行政、业务等各方面的最高负责人。
随便看	proportionality proportionality coefficient proportionality factor proportional limit proportional loading proportionally cutting circle proportional mean proportional navigation proportional numbers proportional odds model proportional odds regression model proportional part proportional plus integral plus derivative control proportional plus integral plus differential control proportional-plus-integral-plus-differential control proportional price rule proportional profile proportional region proportional regulator proportional regulatory systems proportional relation proportional relations among agriculture,light industry and heavy industry proportional relations among primary industry,secondary industry and tertiary industry proportional representation proportional sampling

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。