Top ndị na-enye ndị na-ebubata ahịrị ahịrị lubrications - Nnukwu onye nkesa na - arụ ọrụ - Jianhe
Top ndị na-enye ndị na-ebubata ahịrị ahịrị lubrications - Nnukwu onye nkesa na - emegharị - JIANHEDEDAIL:
Ihe onyonyo zuru ezu:
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Ntuziaka Ngwaahịa metụtara:
Nzukọ a na-eme ka usoro ọmụmụ nke sayensị, dị elu na nke ọma Iji nye ndị ahịa anyị aka karịa, anyị niile dị njikere iji ike ụlọ na ndị si mba ọzọ na-agbanwe agbanwe na imekọ mba ọzọ, iji wuo ọdịnihu dị mma.