mean increment

例句：

1. 1. The company's sales have been increasing at a steady mean increment of 5% per quarter.
   这家公司的销售额以每季度5%的平均增量稳步增长。
2. 2. The team is working on a project that aims to achieve a mean increment in efficiency.
   团队正在致力于一个项目，旨在提高效率。
3. 3. The research suggests that the mean increment in productivity has been slowing down over the past few years.
   研究表明，过去几年生产力的平均增长率已经放缓。