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超声波收发器, 32.8KHZ, 16MM
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超声波收发器,40KHZ, 12MM
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换能器, Receiver, Ultrasonic, 接收器, 115 dB
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换能器, Transmitter, Ultrasonic, 发送器, 115 dB
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换能器, Receiver, Ultrasonic, 接收器, 115 dB
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开放式超声波收发器,40KHZ, 12MM
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换能器, Receiver, Ultrasonic, 接收器, 115 dB