Therefore, upper structures are most useful when the composer wishes for a specific tension array to be played.

The machine was still moving, slowly, its upper structure now entirely engulfed in flame.

This tower had a four-headed upper structure and was the first of its kind to be built in Cairo.

They were due to crumble when the upper structure was completely gone.

I was referring to key personnel in the upper structures of the enemy.

Also the upper structures of captain's bridge are missing.

During the first constructive stage identified at Comalcalco, the upper structure had mud walls.

Like the Minoans, they often combined brick bases with an upper structure of timber.

The upper structure on the top of the brigade-mess also fell in.

Its upper structure has been completely robbed away but the substructure remains.