utilized coefficient

例句：

1. 1. The efficiency of the machine is greatly improved by the optimized design.
   通过优化设计，机器的效率得到了极大的提高。
2. 2.The new model has a higher utilized coefficient than its predecessor.
   新型号的利用率系数比前一代产品高。
3. 3. The coefficient of thermal conductivity is used to predict the performance of materials in different environments.
   热导率系数用于预测材料在不同环境下的性能。