1. LED n'okpuru ala ọkụ Ọ nwere ọtụtụ ngwa ngwa, nke a na-eli n'ime ala, na-eji ihicha mgbidi dị n'èzí nke ụlọ ma ọ bụ na-egbuke egbuke osisi.Mpaghara ngwa a na-ejikarị gụnyere nnukwu ụlọ ụlọ ọrụ azụmahịa, oghere akwụkwọ ndụ akwụkwọ ndụ nke mepere emepe, ubi, ogige ntụrụndụ, ebe nkiri, comme...
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