Outm dị elu nke lible lubric usoro maka ụlọ ọrụ na-akụzi - hybọp mmanụ lubrication - Jianhe
Okirikiri Oyizi mmanụ nke ọma maka ụlọ ọrụ na-arụ ọrụ - ihe enyemaka mmanụ lubrication - Janhedenail:
Ihe onyonyo zuru ezu:
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Ntuziaka Ngwaahịa metụtara:
Anyị na-esi ọnwụ na ụkpụrụ nke mmepe nke 'ịdị elu, eziokwu na ala, a na-arụ ọrụ dị mma nke usoro a na-eme ka ị na-eme ihe ngosi' iji nye gị lubrication - lubhe, Ngwaahịa ahụ ga-enyefe ụwa niile, dị ka: Oman, Florida, Jakarta, anyị na-agbaso ihe ọmụma nke "na-adọta ndị ahịa na ihe kachasị mma na ọrụ dị mma". Anyị na-anabata ndị ahịa, mkpakọrịta azụmahịa na ndị enyi na ndị enyi ụwa niile iji kpọtụrụ anyị ma chọọ imekọ ihe ọnụ maka inwe mmekọrịta.