voussoir

/voo-swahr/US // vuˈswɑr //UK // (vuːˈswɑː) //

观察室,观察者网,观察窗,观察站

Definitions

n.名词 noun

1
Architecture.
- : any of the pieces, in the shape of a truncated wedge, that form an arch or vault.

Each voussoir was a cast-iron framed piece two feet long and five feet in depth, and these were bolted together.
Stone blocks in the shape of a voussoir (fig. 14) may be used instead.
Each block or voussoir should be cut to fit exactly in its appointed place, the joints being made as fine as possible.