Ndi chitukuko chofulumira cha sayansi ndi ukadaulo komanso chuma chamakampani m'zaka zaposachedwa, zotayira za aluminiyamu zakhala zikugwiritsidwa ntchito kwambiri pazandege, zakuthambo, magalimoto, kupanga makina, kulumikizana ndi matelefoni ndi mafakitale azachipatala, ndipo ndizomwe zimagwiritsidwa ntchito kwambiri osati ...
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