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单词 line of departure
释义 line of departure
[`līn ǝv di`pär·chǝr]
NAVIGATION
The initial position of a scouting line, from which scouts proceed on their prescribed courses for search.
ORDNANCE
1. The direction of a projectile at the instant it clears the muzzle of the gun.
2. The direction of a bomb or rocket at the instant of launching.
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