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Imishini yokusabalalisa ye-20Khz ye-ultrasonic
Ubuchwepheshe bokusabalalisa kwe-Ultrasonic bunqoba izinkinga zokusabalalisa kwendabuko ukuthi izinhlayiya zokuhlakazeka azilungile ngokwanele, uketshezi lokusabalalisa aluzinzile, futhi kulula ukululahla.
