11. Beneath each computer character, human or not, is a complex series of structural systems . 12. The ensuing restoration efforts were extensive, aimed primarily at repairing the building's structural system . 13. Its structural system is referred to variously as horizontal-plank frame, stacked plank or plank-to-plank. 14. The structure elements are combined in " structural systems ". 15. He introduced a new structural system of framed tubes in skyscraper design and construction. 16. The methods developed should be helpful for achievement of high performance of the structural system . 17. Inside the barns are supported by heavy structural systems . 18. The building was the first in Denmark to have a structural system of cast iron. 19. This structural system enables the building to support itself laterally and keeps it from twisting. 20. The technique has been applied to buildings, bridges, and many other type of structural systems .
