例句與造句

1. About of land is needed per each drill pad for surface installations.
2. The fort sustained heavy damage to its surface installations and the Germans entered the perimeter on 15 May, but did not take the fort.
3. The surface installations of the Fort d'Illange are accessible to the public, and a similar public use is proposed for the Fort de Koenigsmacker.
4. A prolonged defense of the island required the preparation of an extensive system of caves and tunnels, for the naval bombardment had clearly shown that surface installations could not withstand extensive shelling.
5. It's difficult to find surface installation in a sentence. 用surface installation造句挺難的