pronephric segment

例句：

1. 1. The surgeon performed a prosthetic replacement for the patient's damaged prostate.
   外科医生为患者的受损前列腺进行了假体置换手术。
2. 2. The research focused on the prostatic segment of the male reproductive system.
   该研究专注于男性生殖系统的前列腺段。
3. 3. Prostatic cancer is a common type of cancer in older men.
   前列腺癌是老年男性中常见的癌症类型。