sand casting process

例句：

1. 1. The sand casting process is used to produce complex shapes in metal.
   砂型铸造工艺用于金属中制造复杂的形状。
2. 2.In the sand casting process, molten metal is poured into a mold made of sand.
   在砂型铸造过程中，熔化的金属被倒入由沙子制成的模具中。
3. 3. The sand casting process has many advantages over traditional methods for producing parts.
   与传统的生产零件方法相比，砂型铸造工艺有许多优点。