advance coefficient

例句：

1. 1. The company's new product line has a significant advancement coefficient compared to its previous models.
   该公司的新产品线与之前的模型相比，具有显著的推进系数。
2. 2.The research team found that the advancement coefficient was higher in the region with more rainfall.
   研究团队发现，降雨量较多的地区推进系数较高。
3. 3. The advancement coefficient is calculated by taking into account the growth rate of the population and the rate of technological progress.
   推进系数是通过考虑人口增长率和技术进步率来计算的。