| 释义 |
intrados Arch.|ɪnˈtreɪdɒs|
[a. F. intrados, f. L. intrā within + F. dos the back.]
The lower or interior curve of an arch; esp. the lower curve of the voussoirs or stones which immediately form the arch. Cf. extrados.
1772C. Hutton Bridges iii, The relations between their intrados and extrados. 1823P. Nicholson Pract. Build. 283 Design of a bridge in which the intrados is the arc of a circle. 1879Sir G. Scott Lect. Archit. II. 141 We have hitherto supposed our arches to be of moderate depth from extrados, or outer line, to intrados, or inner line. |