acoustical unit वाक्य
"acoustical unit" हिंदी में acoustical unit in a sentenceउदाहरण वाक्य
- Visual observation was used for detecting approaching aircraft . For nighttime detection, the " Glavnoye artilleriyskoye upravleniye " ( GAU, Main Artillery Administration ), of the Red Army, had developed an acoustical unit that was used to aim a searchlight at targets.