pressure coefficient

例句：

1. 1.The pressure coefficient of the gas is 0.8 at 25°C.
   气体在25°C时的压强系数为0.8。
2. 2. The pressure coefficient affects the rate of reaction.
   压强系数影响反应速率。
3. 3. The pressure coefficient can be used to predict the behavior of fluids under high pressures.
   压强系数可用于预测流体在高压下的行为。