Ha u kenya meter ea metsi a ultrasonic, ho hlokahala hore u nahane ka tataiso ea phallo, boemo ba ho kenya le maemo a liphaephe, ka tsela e latelang: 1. Pele ho tsohle, re tlameha ho qala ho etsa qeto ea hore na ke phallo ea tsela e le 'ngoe kapa phallo ea litsela tse peli: tlas'a maemo a tloaelehileng. maemo, ke tsela e le 'ngoe feela, empa re ka khona ...
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