BEL Battle Field Surveillance Radar Secondary Surveillance Radar Air Route Surveillance Radar Near Earth Object Surveillance Satellite Radar surveilans utama Radar pengawas bandar udara Direction de la surveillance du territoire SGS S.A. Sistem pengawasan tergantung otomatis–siaran
A PHP Error was encountered
Severity: Notice
Message: Trying to get property of non-object
Filename: wikipedia/wikipediareadmore.php
Line Number: 5
A PHP Error was encountered
Severity: Notice
Message: Trying to get property of non-object
Filename: wikipedia/wikipediareadmore.php
Line Number: 70