multiple-core casting

例句：

1. 1. This new machine uses multiple-core casting to produce parts with complex shapes.
   这台新机器使用多核心铸造来生产具有复杂形状的部件。
2. 2. The engineers developed a new method for multi-core casting, which significantly improved the quality of the finished products.
   工程师们开发了一种新的多核心铸造方法，显著提高了成品的质量。
3. 3. In the automotive industry, multiple-core casting is widely used in the production of engine components andtransmission systems.
   在汽车工业中，多核心铸造广泛应用于发动机组件和传动系统的生产。