最終更新日：2022/12/24
Ford's Ravelin.—Completed in its ditch, ſluices, cunette, aqueducts, ſcarp, and counterſcarp walls; […]
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Ford's Ravelin.—Completed in its ditch, ſluices, cunette, aqueducts, ſcarp, and counterſcarp walls; […]
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