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Terms for subject United Nations containing 视 动 | all forms
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用摄影设备,例如录像带和单镜反光相机进行监视行动surveillance operations with photographic equipment, such as videotape and single lens reflex cameras
被动或主动红外线、热追踪或图像增强夜视观察passive or active infrared, thermal, or image intensification night-time line of sight visual observation