Autonomous underwater vehicles (AUVs) rely on a mechanically scanned imaging sonar that is fixedly mounted on AUVs for underwater target barrier-avoiding and tracking. When underwater targets cross or approach each other. AUVs sometimes fail to track. or follow the wrong target because of the incorrect association of the multi-target. https://www.spidertattooz.com/Color-Club-Nail-Lacquer-Pure-Energy-0-5-oz-p9629/