piercing by electric arc

例句：

1. 1.The surgeon performed a piercing surgery on the patient's earlobe.
   外科医生为患者的耳垂进行了一次穿孔手术。
2. 2.The piercing jewelry was made from stainless steel and had a beautiful design.
   这个穿孔饰品是由不锈钢制成的，设计非常漂亮。
3. 3.The piercing can be used to attach a pendant or charm to the chain.
   这个穿孔可以用来将吊坠或装饰挂在链条上。