diagnostic cast

例句：

1. 1. Thedoctor used a diagnostic cast to help diagnosethe patient's condition.
   医生使用诊断性铸件帮助诊断病人的状况。
2. 2. During themanufacturing process, a diagnostic cast is usedto ensure the parts fit together correctly.
   在制造过程中，使用诊断性铸件来确保部件正确配合。
3. 3. The engineer made adiagnostic cast of the damaged part to determinethe best way to repair it.
   工程师制作了损坏部分的诊断性铸件，以确定最佳修复方法。