blind perforator

例句：

1. 1. The blind perforator was a crucial part of the surgical procedure.
   盲穿孔器是手术过程中至关重要的部分。
2. 2. The surgeon used a blind perforator to remove the tumor.
   外科医生使用一个盲穿孔器来切除肿瘤。
3. 3. The patient needed a blind perforator to access his lungs.
   患者需要盲穿孔器来进入他的肺部。