采用超声探伤的原理，开发一种速度快、功能强的铜棒超声波自动检测系统。
Based on ultrasonic testing principium, a system of ultrasonic automatism testing for copper rods is developed.
超声波在人体中传播，它的能量高，穿透力强，可定向传输，并具有热作用。
Ultrasonic transmits itself in the body. It has not only high energy but also strong penetrating force and heat effect.
介绍了超声波具传播方向性强、介质振动强度大、在液体中可产生空化现象等特点。
Characteristics of ultrasound, such as strong directional transmission, high vibration intensity in the transmitting medium, and cavitation in liquid medium were introduced.
超声波定位具有结构简单、实用性强、成本低、测距精准等优点，因此被广泛的应用到各个领域。
Ultrasonic positioning is simple in structure, practical, low cost, the advantages of precise ranging. Therefore, was widely applied to various fields.
超声波筛分系统能够筛分普通筛分机不能分离的重质、轻质、超细、强吸附性粉末，几乎对所有难筛分的粉末有效。
Features Ultrasonic screening system can separate heavy, light, super fine, strong adsorption powder, almost of all difficult to effective screening of powder.
超声波电机是一种新型的电机，它有许多电磁电机无法比拟的优点，但它的数学模型的强非线性和时变性，使高精度的位置定位非常困难。
Ultrasonic Motor (USM) has excellent performance and many useful features, however, its mathematical model has strong non-linearity and time-variety to make precise position servo very difficult.
超声波电机是一种新型的电机，它有许多电磁电机无法比拟的优点，但它的数学模型的强非线性和时变性，使高精度的位置定位非常困难。
Ultrasonic Motor (USM) has excellent performance and many useful features, however, its mathematical model has strong non-linearity and time-variety to make precise position servo very difficult.
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