A ma ama griiz kachasị mma na-eme ka a na-eme mkpọtụ
A mara mma na-acha uhie uhie na-efegharị lubrication sistem -pvd ụdị valvs - Janhedenetail:
Ihe onyonyo zuru ezu:
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Ntuziaka Ngwaahịa metụtara:
Nchụso ebighi-ebi anyị bụ àgwà nke "na-ahụ maka ọdịnala ahụ, na-egosi na sayensị" gbakwunyere ụkpụrụ "nke dị elu" na-eme ka ọ dịkwuo mma " A na-enweta valves - Janhe, ngwaahịa a ga-enyefe ụwa niile, Riyadh, Somalia, ma ọ bụrụ na ị nwere mmasị na ngwaahịa ọ bụla na azịza anyị Ọ na-amasị gị ikwu okwu omenala, cheta inwere onwe gị ịkpọtụrụ anyị. Anyị na-atụ anya ịme mmekọrịta azụmahịa na-aga n'ihu na ndị ahịa ọhụrụ gburugburu ụwa n'ọdịnihu dị nso.