propagation effect

例句：

1. 1. The spread of the disease is a concern for public health officials.
   这种疾病的传播是公共卫生官员们关心的问题。
2. 2.The research team has conducted extensive experiments to understand the propagation effect of the new drug.
   研究团队进行了广泛的实验，以了解新药的扩散效应。
3. 3. The propagation effect of the new technology is expected to revolutionize the industry.
   新技术的扩散效应预计将彻底改变该行业。