Outm dị elu nke na-esi ísì ụtọ igwe ọrụ - PVD ụdị mita - JVD
Odighi mma nke onym dị elu na-eji lubrication usoro -pvd ụdị valves - Janhedenail:
Ihe onyonyo zuru ezu:
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Ntuziaka Ngwaahịa metụtara:
Were ọrụ zuru oke iji gboo mkpa ndị ahịa anyị niile; mezuo oganihu site na-akwadoputa mgbasawanye nke ndi ahia anyi; Banye na mmekorita ikpeazu na-adịgide adịgide nke ndị na-adịgide adịgide nke ndị ahịa na ịbawanye ọdịmma ndị ahịa Conprication - Jianhuum, anyị na-eme ngwaahịa anyị ihe karịrị afọ iri abụọ. Tumadi na-aba uru, yabụ anyị nwere ọnụahịa asọmpi kachasị, mana ogo kachasị elu. N'ime afọ ndị gara aga, anyị nwere ezigbo ezigbo nzaghachi, ọ bụghị naanị n'ihi na anyị na-enye ngwaahịa dị mma, kamakwa n'ihi ọdịmma anyị mgbe ọ rerer ozi ọma. Anyị nọ ebe a na-eche gị maka nyocha gị.