Matatar harsashi mai nadawa
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PP nadawa harsashi tace gidaje
An yi shi ne da harsashin bakin karfe da kuma harsashin tacewa, sassa biyu ne, ruwa ko iskar gas ta cikin harsashin tacewa daga waje zuwa ciki, ƙwayoyin datti suna makale a wajen harsashin tacewa, kuma matsakaicin tacewa yana kwarara daga tsakiyar harsashin, don cimma manufar tacewa da tsarkakewa.