Ravelin

[rævlin]

解釋/意思:

(n.) A detached work with two embankments which make a salient angle. It is raised before the curtain on the counterscarp of the place. Formerly called demilune, and half-moon.

整理:薇尔玛

解釋/意思:

n. a detached work with two embankments raised before the counterscarp.

編輯:韦德