proportional control factor

例句：

1. 1. The system's performance is highly dependent on the proportion of factors that affect it.
   该系统的性能高度依赖于影响它的因素的比例。
2. 2. The research team found that the proportion of variables influencing the outcome was not constant across different experiments.
   研究团队发现，影响结果的因素在不同类型的实验中所占比例并不恒定。
3. 3.In this study, we identified the key factors contributing to the success of the project.
   在本研究中，我们确定了对项目成功起关键作用的因素。