long-chord winding

例句：

1. 1.The long-chord winding of the river is a natural wonder.
   河流的长弦状弯曲是大自然的奇观。
2. 2.The engineer designed the long-chord winding to improve efficiency.
   工程师设计了长弦状的管道以提高效率。
3. 3.The long-chord winding was built to accommodate the increased traffic.
   长弦状的管道是为了适应增加的交通量而建造的。