pressure step-up ratio

例句：

1. 1. The engineer calculated the pressure step-up ratio to determine the optimal flow rate for the system.
   工程师计算了压力级差比，以确定系统的最佳流量。
2. 2. In this experiment, we measured the pressure step-up ratio to understand how the pump operates under different conditions.
   在这个实验中，我们测量了压力级差比，以了解泵在不同条件下的运行情况。
3. 3. The pressure step-up ratio is crucial for maintaining the integrity of the pipeline system.
   压力级差比对于保持管道系统的完整性至关重要。