超声洁刮治
ultrasonic subgingival scaling and root planning
超声洁牙治疗
ultrasonic scaling treatment
超声洁牙机
ultrasonic scaling machine
超声洁牙设备
Ultrasonic dental descaler
超声声空化
ultrasonic sonic-vacating
超声声速
velocity of ultrasonic sound
ultrasonic velocity
Ultrasonic sound velocity
ultrasonic pulse velocity
Speed of sound
超声声速测量
Ultrasonic velocity measurement
超声声速法
ultrasonic velocity method
超声声速与衰减
Ultrasonic velocity and attenuation
超声声像图特征
Ultrasonographic features
超声声像图综合积分值
Dimensional ultrasound score