directive coefficient

例句：

1. 1. The company's new policy is designed to improve employee productivity.
   该公司的新政策旨在提高员工生产力。
2. 2. The research team used a directive coefficient to determine the optimal parameters for their experiment.
   研究团队使用一个指导系数来确定他们的实验的最佳参数。
3. 3.The coefficient was calculated using the data from the previous year to predict future trends.
   该系数是通过以前年度的数据计算得出的，以预测未来趋势。