primary constriction
常见例句
- Centromere --- The primary constriction on the chromosome, a region at which the sister chromatids are held together and at which the kinetochore is formed.
染色体的主缢痕，使姐妹染色单体连在一起，在其两侧各有一个由蛋白构成的动粒。 - Objective To evaluate the effectiveness of external constriction valvuloplasty of superficial femoral vein in the treatment of primary lower extremity deep vein valve insufficiency.
目的探讨原发性下肢深静脉瓣膜功能不全的手术治疗方法及效果。 返回 primary constriction