brass borings

例句：

1. 1.These brass borings are used to make holes in metal sheets.
   这些黄铜钻用于在金属板材上打孔。
2. 2. The brass borings were made from recycled materials.
   这些黄铜钻是由回收材料制成的。
3. 3.The brass borings were used as a decorative element in the design.
   这些黄铜钻作为设计中的装饰元素使用。