Ingabe amaphampu okushisa anomsindo?
Impendulo: Yonke imikhiqizo yokushisisa yenza umsindo othile, kodwa amaphampu okushisa ngokuvamile athule kunamabhayela kaphethiloli. Iphampu yokushisa yomthombo ophansi ingase ifinyelele kuma-decibel angu-42, futhi iphampu yokushisa yomthombo womoya ingase ifinyelele kuma-decibel angu-40 kuya kwangu-60, kodwa lokhu kuncike kumkhiqizi nokufaka...
buka imininingwane