pressure diffusion

例句：

1. 1.The pressure diffusion model is widely used in chemical engineering.
   压力扩散模型在化工工程中广泛应用。
2. 2.The pressure diffusion process is crucial for the stability of the system.
   压力扩散过程对于系统的稳定性至关重要。
3. 3. The pressure diffusion equation describes the movement of particles in a gas.
   压力扩散方程描述了气体中粒子的运动。