Mackie concluded that ancient people probably built the ledge as an astronomical observation platform . 麦凯断定，古人筑起这个凸岩大概是为了作天文观测台用的。
Many years ago the spring induced the natives to select the place for their temporary fortification . 很多年前，这眼清泉，使得土人们选中这儿作为临时筑堡设防的地方。
Hydraulic fill dams are built of sand and silt brought into the dam in a stream of water, usually through a pipe . 水力冲填坝通常是用一根管子利用水流把砂和粉沙运到坝体处筑坝。
As sedimentation continues the deposits adjacent to the aperture will build up, layer by layer, to the water level . 当沉积作用连续进行时，邻近口子的沉积将一层一层地向上筑造到水面。
All the studios scream that they're desperate for new talent, and then they put up a big wall and won't let anybody in . 所有的制片厂都叫嚷他们急需新的天才，但是他们又围墙高筑，不让新人进去。
According to their building material, dams are described as concrete, earth fill, rock fill, hydraulic fill and so on . 按照筑坝所用材料，可以把坝称为混凝土坝、填土坝、堆石坝，水力冲填坝等等。
I suppose it's smarter to use these rocks and build a good blind for this gun than to make a proper emplacement for it . 我看，聪明一点的办法是利用这些岩石给挺抢修一个隐蔽得很好的火力点，而不要筑一个正式的掩体。
Hebgen dam, an earthfill structure with an unreinforced concrete corewall located on the madison river at its entrance to madison canyon . 赫布根坝是土筑的结构，在麦迪逊河进入麦迪逊峡谷处有一个无加固凝土的芯墙。
Directly on the shore of the lake, and nearer to its western than to its eastern margin, lay the extensive earthen ramparts and low buildings of william henry . 在这湖岸偏西一带，散布着威廉享利的土筑壁垒和低矮的建筑。
Vandalizing the great buildings, tearing up fences, breaking off the branches of small tress, smashing windows were their way of showing their anger . 破坏大建筑物、拆毁篱笆、折断小树的枝杈、打破窗玻璃等就成为他们泄愤的方式。
