*Cloudy sky* 22513 ارسال شده در 19 مهر، 2012 Nave : محراب In Romanesque and Gothic Christian abbey, cathedral basilica and church architecture, the nave is the central approach to the high altar, the main body of the church. 2
*Cloudy sky* 22513 ارسال شده در 20 مهر، 2012 keystone : كليد قوس A keystone is the wedge-shaped stone piece at the apex of a masonry vault or arch, which is the final piece placed during construction and locks all the stones into position, allowing the arch to bear weight 1
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