blind operation

• 盲探性手术

blind operation的用法和样例：

例句

1. Most of nerve blocks are blind puncture, and require preservaion of consciousness and cooperation so that patients can tell paresthesia and the site of its radiations.
   神经阻滞多为盲探性操作，要求病人清醒合作能说出异感并能辨别异感放射的部位。