head of ingot

例句：

1. 1. The steel industry uses ingots to make steel.
   钢铁工业使用锭来制造钢铁。
2. 2. The forging process involves shaping ingots into various shapes.
   锻造过程涉及将锭形变成各种形状。
3. 3. The metallurgist carefully handles the ingots during the refining process.
   冶金学家在精炼过程中小心处理锭。