Assertion: blackout | /r/HasProperty | special concern
Facets:
value: in missile defense systems
type: LOCATION
Source sentences:
text: Blackout is a special concern in missile defense systems, where the effect can be used to defeat ground-based radars by producing large opaque areas behind which approaching warheads cannot be seen.
text: Some free divers consider blackout on ascent to be a special condition or subset of shallow water blackout but the primary underlying mechanisms differ.