attached structure

例句：

1. 1. The engineer designed the building with an attached structure for easy maintenance.
   工程师设计了一座带有附属结构的建筑，便于维护。
2. 2. The new car features a unique attached structure that enhances its safety features.
   这款新车配备了一个独特的附加结构，增强了其安全特性。
3. 3. The research team developed a new attachment structure to improve the efficiency of the machinery.
   研究团队开发了一种新的附加结构，以提高机械的效率。