“层次结构”的概念、定义、翻译、参考文献-科学参考

单词	层次结构
释义	层次结构 Encyclopedia 理学还原论释 hierarchical structure层次结构由低层次系统（要素）到高层次系统逐步形成的系统搭配和排列。
随便看	flight attendant flight attitude flight block of photography Flight condition flight control flight control actuation system flight control computer system flight control of morphing flight vehicle flight control of multi-rotor vehicle flight control system flight control system build in test flight control system flight test flight control system ground test with an aircraft flight control system software flight crew flight crew emergency exits evacuation demonstration Flight crew operation plan flight data recorder systems flight declination correction flight delay flight director system flight dynamics of aircraft flight envelope flight fault detection flight fault isolation

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。