gas ballast flow

例句：

1. 1. The gas flow rate is crucial for the operation of the industrial furnace.
   燃气流量对于工业炉的操作至关重要。
2. 2. The gas flow rate measurement system is used to monitor the gas flow in the pipeline.
   气体流量测量系统用于监测管道中的气体流量。
3. 3. The gas flow rate measurement error can affect the accuracy of the process control system.
   气体流量测量误差会影响过程控制系统的准确性。