“乌尔曼条件”的概念、定义、翻译、参考文献-科学参考

单词	乌尔曼条件
释义	乌尔曼条件 Encyclopedia 理学乌尔曼条件释 Ullman conditions乌尔曼条件美国学者乌尔曼对1948年美国发布的铁路货运流数据进行研究后，提出两个地点之间发生空间相互作用需满足互补性、干预机会、可运输性三个基本条件。
随便看	special equipment trenchless detection technology special examination special examination of statecraft special exhibition special exhibits special fire service special flavor liquor special flow special food safety risk monitoring special forming special function special functional equation special fund for cultural industry development special funds for the arrangement and publication of the national ancient books special geometry special geomorphology special government allowances of the state council special graph algorithm special graphs special group special hematological test Special Higher Police special homology manifold special housing special hunting license

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。