entrance velocity profile

• 非均匀性

entrance velocity profile的用法和样例：

例句

1. Local slip velocity is an important factor in mass,momentum and heat transfer of riser reactors.
   这种颗粒团尺寸的不均匀性导致了滑移速度沿径向也存在着梯度分布。
2. Besides, an appropriate airflow velocity and loading gap is suggested to be set by considering both the loadage and the uniformity of temperature field in practical applications.
   同时，应综合考虑装载量以及温度场的均匀性，选择最合适的送风速度以及货物装载间隙。