Emphasis has been on four key elements of the technological change process: (1) an innovative technology (2) communicated through certain channels (3) to members of a social system (4) who adopt it over a period of time.
技术革新过程的重点是四项关键要素：（1）一项创新技术（2）与一个社会系统的成员（3）通过某种渠道进行交流（4）他们在一段时间接受它。