lagged surface
英 [læɡd ˈsɜːfɪs]
美 [læɡd ˈsɜːrfɪs]
护热面
双语例句
- One subway line is made up of two parallel tunnels. One tunnel is usually lagged behind the other when excavated in a cross-section. So the surface subsidence caused by the excavation of two tunnels will affect each other.
一般城市地铁隧道常由双线平行隧道构成，通常其中一条隧道在一个断面的开挖要滞后于另一条隧道，因此两条隧道开挖引起的地表沉降将会受到互相影响。