entrance velocity profile的用法和樣例：
例句
- Local slip velocity is an important factor in mass,momentum and heat transfer of riser reactors.
這種顆粒團尺寸的不均勻性導致了滑移速度沿徑向也存在著梯度分佈。 - 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.
同時，應綜合考慮裝載量以及溫度場的均勻性，選擇最合適的送風速度以及貨物裝載間隙。
