cycle heat rate

例句：

1. 1. The new car has a higher cycle heat rate than the old one.
   这辆新车的循环热效率比旧车高。
2. 2. The efficiency of the energy conversion process directly affects the cycle heat rate.
   能量转换过程的效率直接影响循环热效率。
3. 3. To improve the cycle heat rate, we need to optimize the design of the heat exchanger.
   为了提高循环热效率，我们需要优化换热器的设计。