“Ullman conditions”的概念、定义、翻译、参考文献-科学参考

单词	Ullman conditions
释义	Ullman conditions 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	electric heated roll electric heating electric heating digestion apparatus electric heating floor electric heating oil gathering process electric heating radiator electric hoist electric hydraulic control system electric hysteresis effect electric hysteresis loop electric ignition technology electric image electric image method electric incubator electric induction electric initiation electric instruments components electric instruments system electric instruments verifying apparatus electric insulation textiles electricity electricity consumption for irrigation and drainage electricity consumption load curve electricity consumption load ratio electricity consumption of primary industry

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。