“urban system”的概念、定义、翻译、参考文献-科学参考

单词	urban system
释义	urban system Encyclopedia 工学总论释 urban system城镇体系在一定地域范围内，以中心城市为核心，由一系列不同等级规模、不同职能分工、相互密切联系的城镇组成的有机整体。
随便看	risk of the first kind risk of the second kind risk of the third kind risk on hazards of exotic species risk perception risk perception in the commission of crime risk point risk predictability training risk prediction risk preference risk premium risk prevention of collection risk priority number risk profile risk rerception risk retention risk return tradeoff risk-return trade-off risk-return tradeoff risks associated with physical activity and exercise risk-sensitive stochastic control problem risks in tourism risk society Risks of Investment Program risk spreading

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。