diffusion
n. 扩散,传播
例句
There are data on the rates of diffusion of molecules.
有一些关于分子的扩散速率的数据。
《柯林斯英汉双解大词典》
In December 1778, he proposed the plan "for the more general diffusion of knowledge".
1778年12月,他提出了“更普遍传播知识”的计划。
Iron came from West Asia, although its routes of diffusion were somewhat different than those of agriculture.
铁器来源于西亚,尽管它的传播路径跟农业技术的传播路径有些不同。