“速度密度关系”的概念、定义、翻译、参考文献-科学参考

单词	速度密度关系
释义	速度密度关系 Encyclopedia 工学交通流模型释 velocity-density relation速度密度关系速度与密度呈现线性关系。当密度从零逐渐增大，则车速从自由流速度逐渐减小；密度达到最佳密度时，车速为流量最大时对应的速度（最佳速度）；当密度达到阻塞密度时，车速为零，交通阻塞。
随便看	protective glasses protective greenbelt protective jurisdiction protective layer protective load protective mask protective medical textiles protective packaging protective performance of clothing protective price of agricultural products protective relaying of distribution network protective shed at the feeding port protective shield protective shoes protective technology of biological and chemical weapons in protective engineering protective technology of electromagnetic pulse in protective engineering protective technology of nuclear radiation in protective engineering protective technology of openings protective technology of protective engineering protective textiles for sports protective tissue protective works of gully head protect on GIAHS protector Protectorate

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。