intrados

/in-truh-dos, -dohs, in-trey-dos, -dohs/US // ˈɪn trəˌdɒs, -ˌdoʊs, ɪnˈtreɪ dɒs, -doʊs //UK // (ɪnˈtreɪdɒs) //

本身,本科生,内部,本质上

Definitions

n.名词 noun

1
plural in·tra·dos [in-truh-dohz, in-trey-dohz], /ˈɪn trəˌdoʊz, ɪnˈtreɪ doʊz/, in·tra·dos·es.Architecture.
- : the interior curve or surface of an arch or vault.

The under or concave side of the voussoirs is called the intrados, and the upper or convex side the extrados of the arch.
The inner surface, or intrados, and the remainder of the extrados are smoothly dressed (fig. 38).
In S. Sophia the vault springs from the intrados of the transverse arches, that is, from the lower edge.
Intrados: The under or concave face of the solid structure of an arch.
It was determined to attempt to stop these leaks by the application of a water-proof cement coating on the intrados of the arch.