polygonal fort

English

polygonal fort (plural polygonal forts)

(historical) A kind of fortification without bastions, and generally arranged in a ring around the protected area, originating in France in the late 18th century and fully developed in Germany in the first half of the 19th century.

单词	polygonal fort
释义	polygonal fort English Noun polygonal fort (plural polygonal forts) (historical) A kind of fortification without bastions, and generally arranged in a ring around the protected area, originating in France in the late 18th century and fully developed in Germany in the first half of the 19th century.
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