雷达: radar防线: line of defense雷达防撞； 雷达冲突: radar collision海洋雷达防空舰: ocean radar station ship雷达防空警戒网: electronic air warning network雷达防撞告警装置: radar collision warning device国防线: national defense line海防线: coastal front血防线: bloodlines芭芭拉防线: barbara line巴列夫防线: bar lev line北约防线: nato defense (alternate mazes)侧翼防线: flank barrier第2防线: secondary defense冬季防线: winter line黑客防线: hacker defence后防线站位: defensive line后卫线，后防线: abwehrkette环形防线: perimeter蓝天防线: defence in the sky马其诺防线: maginot line马奇诺防线: maginot line齐格菲防线: siegfried line人民防线报: obrana lidu三道防线: three lines of defence
