Astragal

[æstrәgәl]

解释:

(n.) A convex molding of rounded surface, generally from half to three quarters of a circle.

(n.) A round molding encircling a cannon near the mouth.

校对:塔玛拉

解释:

n. (archit.) a small semicircular moulding or bead encircling a column: a round moulding near the mouth of a cannon: the bars which hold the panes of a window.

埃德娜校对