Qinisekisa ukuba isixhobo sisebenza kakuhle
Jonga izinga lokuhamba komoya ukuze ubone isalathisi. Ukuba ixabiso elibonisiweyo lilungile, icala lokuhamba komoya liya kuba ukusuka kwi-UP transducer ukuya kwi-Down transducer; ukuba ixabiso elibonisiweyo libi, icala liya kuba ukusuka kwi-Down transducer ukuya kwi-UP transducers;
Jonga izinga lokuhamba komoya, ukuba ixabiso lomboniso liyi-“+”, ingaba liza kuba lihle na. Ukuba ixabiso lomboniso liyi-“-”, libi.
Ixesha lokuthumela: Oktobha-14-2022