The ultrasonic sensor produces a data carrier utilizing very high frequencies that are outside the human's audible range.
超声波传感器的数据载体产生的可听范围内使用非常高的频率,不属于人类。
The ultrasonic sensor produces a data carrier utilizing very high frequencies that are outside the human's audible range.
超声波传感器的数据载体产生的可听范围内使用非常高的频率,不属于人类。
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