1. Tanthauzo la relay: mtundu wa chipangizo chodziwongolera chomwe chimayambitsa kulumpha-kusintha kwa zotulutsa pamene kuchuluka kwa zolowetsa (magetsi, maginito, phokoso, kuwala, kutentha) kufika pamtengo wina.1. Mfundo ntchito ndi makhalidwe a relays: Pamene athandizira kuchuluka (monga voteji, panopa ...
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