sonar [ˈsoʊnɑ:(r)]

例句:

• We picked up two submarines on sonar.
  我们用声呐系统观察到两条潜水艇.
  
• The sonar reveals acres of cobblestone fields surrounding our craft.
  声纳揭示出在我们潜水器的周围是一片几英亩大的鹅卵石地.
  
• I'm getting a strong response on the sonar.
  我在声纳上测得强力反应.
  
• Its closer to sonar, its actually biosonar.
  来自SA
• Attacking units can maintain sonar silence, possibly throughout the attack.
  来自Defense Update International
• The sharply defined plane which marked the watersair interface on the sonar screen.
  来自A. C. Clarke