moulding in cores

例句：

1. 1. The engineer is responsible for themoulding of the new product inthe cores.
   这位工程师负责新产品在模具中的成型。
2. 2. The molding process is crucialto the production of high-quality products.
   成型过程对于生产高质量产品至关重要。
3. 3. The mould was made from a piece ofmetal and it was used to shape theproduct in cores.
   这个模具是用金属制成的，它被用来在模具中成型产品。