radial rib

例句：

1. 1. The radial ribs of the tree are strong enough to support its weight.
   这棵树的辐射肋足够强壮，能支撑它的重量。
2. 2.The engineer designed the radial ribs to distribute the load evenly across the structure.
   工程师设计了辐射肋，以均匀地将负载分布在结构上。
3. 3. The radial ribs on the table are perfect for holding a book open.
   桌子上的辐射肋非常适合打开一本书。