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Terms for subject United Nations containing line of | all forms | exact matches only | in specified order only
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line of communication bridge跨线桥
line of communication bridge交通线桥
maritime security lines — the seaward extension of the median line of the buffer zone海上安全线缓冲区中线向海延伸线
passive or active infrared, thermal, or image intensification night-time line of sight visual observation被动或主动红外线、热追踪或图像增强夜视观察