salient

中文： 突出部

1. An outwardly projecting part of a fortification, trench system, or line of defense.
2. A protrusion of the administrative borders of a geopolitical entity, such as a subnational entity or a sovereign state into another geopolitical entity, generally of the same administrative level.
3. An overall-convex, protruding section of a sinuous fold and thrust belt, thrust sheet, or a single thrust fault, caused by one or more of: deformation (folding and faulting) of strata and geologic structures during orogenesis, differences in the angle of critical taper during orogenesis, or differing erosional level of the present geomorphological surface.

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