ravelin
ra
ˈræ
ve
lin
lɪn
lin

“ravelin”的英语定义和含义

Ravelin
01

棱堡, 半月堡

a triangular or polygonal fortification with a raised platform located outside the main defensive walls of a fortress, used to defend the approach and provide additional protection against enemy attacks 
语法信息
有生性状态
无生命
形态构成
简单词
可数
singular
not gender specific
复数形式
ravelins
LanGeek
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