casting surface defect

例句：

1. 1. The casting process is crucial for the quality of the finished product.
   铸造过程对于成品的质量至关重要。
2. 2. This casting surface defect needs to be addressed immediately to prevent further damage.
   这个铸造表面缺陷需要立即处理，以防止进一步损坏。
3. 3. The engineer inspected the casting and found several surface defects that needed to be corrected.
   工程师检查了铸造品，发现了几个表面缺陷需要修正。