spanning of pipeline

• 悬空

spanning of pipeline的用法和样例：

例句

1. The naughty boy sat on the edge of the fence dangling his legs.
   淘气的小男孩坐在栏杆边上，两腿悬空。
2. The sections of pipelines that are over rivers always form multispan beam structure because of scouring, suspending and reimforcing.
   输油管线穿河段由于冲刷悬空，打桩加固形成多跨梁式结构。