substructions造句

For urban development, such substructions are regarded as particularly useful for providing large open spaces in densely populated inner city areas.
Another suburb lay below the town and on the promontory on the west of it; under the Hotel Sirena are substructions and a rock-hewn tunnel.
Aurunca was never rebuilt, and hence no subsequent notice of it is found; but some vestiges of it have been discovered on the summit of a narrow mountain ridge, now called La Serra, or La Cortinella, about north of Suessa, where there are some fragments of the ancient walls, and massive substructions, probably those of a temple.
By the 12th century, the site of the temple was occupied by a castle, converted into a prison; a small portion of the substructions, built of very large and massive stones ( whence they have been erroneously called Cyclopean ), is all that remains of the ancient edifice; but some fine granite columns, still existing in other parts of the town, have doubtless belonged originally to the temple.
It's difficult to find substructions in a sentence. 用substructions造句挺难的