音标与读法

这里为大家介绍下ravelin 是什么意思，希望能帮助到各位朋友。

中英文翻译

n.

【筑城】半月堡。

A ravelin is a triangular fortification or detached outwork, located in front of the innerworks of a fortress (the curtain walls and bastions). Originally called a demi-lune, after the lunette, the ravelin is placed outside a castle and opposite a fortification curtain.单词网DAncI.583316.COM