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1·The study of technology diffusion in a population is discussed in detail in the classic book Diffusion of Innovations, 5th Edition by Everett M. Rogers.

关于技术扩散的研究在 Everett M. Rogers 的经典著作 Diffusion of Innovations 第 5 版中有详细的讨论。

2·The diffusion of agriculture and later of iron was accompanied by a great movement of people who may have carried these innovations.

农业和之后铁器的普及，是伴随着可能传播这些创新的人们的一场运动而来的。