middle stone in an arch or a rib-vault

listen to the pronunciation of middle stone in an arch or a rib-vault
İngilizce - İngilizce

middle stone in an arch or a rib-vault teriminin İngilizce İngilizce sözlükte anlamı

middle stone in an arch or a rib-vault
keystone
middle stone in an arch or a rib-vault