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| small elevation angle track and surveillance | |||
| SEATRACS (small-elevation-angle track and surveillance, i.e., radar-tracking system for the detection and tracking of low-flying targets) | |||
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| small elevation angle track and surveillance | |||
| SEATRACS (small-elevation-angle track and surveillance, i.e., radar-tracking system for the detection and tracking of low-flying targets) | |||