английский => русский Прочее Архитектура

Здравствуйте,

Не могу понять вторую часть предложения. Что имеется ввиду под structural dais?

And the reason that that was the model of beauty and of nature was because the decimal point had not been invented yet and everybody had to dimension a building in terms of fractions, so a room would be dimensioned as one-fourth of a facade; the structural dais of that might be dimensioned as 10 units, and you would get down to the small elements by fractional subdivision: finer and finer and finer.