1. Elu ugboro na elu ọsọ sekit osisi arụpụtara, gụnyere elu arụmọrụ, okpomọkụ arụmọrụ, CAF / okpomọkụ na-eguzogide, n'ibu siri ike, ezi ntụkwasị obi, ọkụ ọkwa, wdg 2. High-frequency elu-ọsọ sekit osisi na ngwaahịa arụmọrụ kenha, dị otú ahụ. dị ka eletriki, rụọ ọrụ ...
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