Ndị na-emepụta maka usoro mmanụ mmanụ - Họrọ ntuziaka mmanụ lubrication - Jianhe
Onye na-emepụta maka usoro mmanụ mmanụ - "Akwụkwọ ntuziaka mmanụ lubrication - jinianhedetail:
Ihe onyonyo zuru ezu:
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Ntuziaka Ngwaahịa metụtara:
Ya na usoro nhazi di nma nke sayensi zuru oke, anyi kwesiri inweta ezigbo aha ma nwekwaa ala ma nwepu ahihia a gha enye uwa nile, dika: Estonia , Etiopia, anyị na-agbaso ihe na-akwụwa aka ọtọ, nke dị mma, na-emeri ozi na-agba ọsọ na ndị mmadụ - nkà mmụta azụmahịa - Ezigbo mma, ezi uche dị na ya na afọ ojuju ndị ahịa na-achụ! Ọ bụrụ na ị nwere mmasị na ngwaahịa anyị, gbalịa ịkpọtụrụ anyị maka nkọwa ndị ọzọ!