具有内外壁光滑、圆整、有较好的弯曲性和弹性，有效保证血液畅通。

具有内外壁光滑、圆整、有较好的弯曲性和弹性，有效保证血液畅通。的英文翻译

基本释义

• The inner and outer walls are smooth and round,which provides good flexibility and elasticity to ensure unblocked blood flowing.