forge crack

例句：

1. 1. The forge cracks the metal, revealing its inner strength.
   锻造过程中，金属裂开，展现出其内在的力量。
2. 2. The engineer carefully inspected the welding joint to ensure no forging cracks were present.
   工程师仔细检查了焊接接头，确保没有锻造裂缝存在。
3. 3. The carpenter noticed a welding crack in the metal surface and immediately repaired it.
   木匠注意到金属表面有一个焊接裂缝，并立即进行了修复。