《ravelin》怎以读
英 ['rævlɪn]
美 ['rævlɪn]
《ravelin》是什么意思
（城墙的）半月堡；
英英释义
Ravelin
- 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.
以上来源于:Wikipedia
学习《ravelin》怎么用
权威例句
RavelinRavelinRavelinThe Ravelin' WolfFloras Kulle. Ravelin Prins UlrikALEKSEJEVSKI RAVELIN KNJIGA O PDAU I VELIČINI ČOVEKAALEKSEJEVSKI RAVELIN : KNJIGA O PADU I VELIČINI ČOVEKAAleksieevsk Ravelin: Otryvok Iz Vospominan (Russian Edition)Mettre un Ravelin & un Ouvrage Couronné devant un Ouvrage à CornetsMilleniemonumentet vid Stora Teatern - Ravelin Prins CarlDance Til Your Stockings are Hot and Ravelin': A Tribute to the Music of the "Andy Griffith Show"Books that were in Fyodor Dostoyevsky during his stay in Alexeyev Ravelin Peter and Paul Fortress (1849)Archeological Investigations: the Southeast Front (Water Battery Vicinity) and Ravelin Dry Moat, Package No. FOMC 276B, Fort McHenry...