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Valve ilmi jj malam buɗe ido bawul

Bawul ɗin Butterfly wanda kuma aka sani da bawul ɗin flap, tsari ne mai sauƙi na bawul ɗin sarrafawa, amma kuma ana iya amfani da shi don sarrafa bututun matsakaicin matsakaicin matsa lamba. Bawul ɗin malam buɗe ido yana nufin wani nau'in bawul wanda ɓangaren rufewa (faifai ko diski) diski ne, wanda ke jujjuya magudanar ruwa don buɗewa da rufewa. Ya fi taka rawa wajen yankewa da tsukewa a kan bututun mai. Bangaren buɗewa da rufewa na bawul ɗin malam buɗe ido wani farantin malam buɗe ido ne mai siffar faifai, wanda ke juyawa kewaye da axis ɗinsa a cikin bawul ɗin, don cimma manufar buɗewa da rufewa ko daidaitawa. Butterfly bawul yana da amfani ga bututun da ke isar da kafofin watsa labarai masu lalata da marasa lahani a cikin janareta, iskar gas, iskar gas, iskar gas, iskar gas, iska mai sanyi da zafi, narkewar sinadarai da samar da wutar lantarki da tsarin injiniyan kare muhalli, wanda ake amfani da shi don tsara da yanke magudanar ruwa na matsakaici.