foundry core

例句：

1. 1.The foundry core is the heart of the machine's operation.
   铸造厂核心是机器运行的核心。
2. 2. The engineer carefully removed the foundry core to inspect the machine's condition.
   工程师小心翼翼地移除了铸造厂核心以检查机器的状况。
3. 3.The foundry core was a crucial component in the production process.
   铸造厂核心在生产过程中是一个关键组件。