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Use "intervisibility" in a sentence
"By calculating the viewshed, the area visible from each of the sites is derived, as well as their intervisibility."
"Range selection is dependent on the anticipated engagement range; it is affected by terrain intervisibility, weather, and light conditions."
"The commander would apply his knowledge of the enemy and terrain to identify individual vehicle positions and, based on intervisibility lines around the objective area, to determine when and where enemy vehicles can engage the company team."