filling modei的用法和样例：
例句
- Calculation of pressure and velocity is very important for the simulation of mold filling of castings.
摘要铸造充型过程数值模拟计算中，速度场和压力场的求解非常重要。 - First, three-dimensional finite element modeling was used to simulate the temperature distribution of camshaft during filling and solidification.
首先采用三维有限元方法模拟了凸轮轴充型凝固过程的温度分布。
