“ratch”的概念、定义、翻译、参考文献-科学参考

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。

单词	ratch
释义	ratch Physics ratch[et]棘轮，棘轮机构
随便看	news media management News media operation model News Media Orientation news methodology research NewsML news moral news morality New Social history new socialist countryside New Social Movements New Society Movement new sociology of education News of Churches News of the Country News of the World New Solar Telescope News Ombudsmanship New Songs from a Jade Terrace New Sounds of Qin New South Wales Corps New South Wales, State of newspaper newspaper and periodical distribution newspaper and periodical distribution study newspaper and periodical market