vascular girdle

例句：

1. 1.The vascular girdle is the protective layer around the heart.
   血管带是围绕心脏的保护层。
2. 2. The vascular girdle helps to support the weight of the blood vessels.
   血管带有助于支撑血管的重量。
3. 3.The vascular girdle is responsible for transporting oxygen and nutrients to the body's tissues.
   血管带负责将氧气和营养物质输送到身体组织。