closing membrane

例句：

1. 1. The closing membrane is responsiblefor sealing the opening.
   封闭膜负责密封开口。
2. 2. The researchers found that the closingmembrane was essential to the process.
   研究人员发现，封闭膜对于该过程至关重要。
3. 3. Thesurgeon carefully closed the wound with a sterile closure membrane.
   外科医生小心翼翼地用无菌的封闭膜缝合伤口。