Zida zoyandama mpweya zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana monga zamagetsi, makina olondola, optics, ndi mlengalenga, ndi zina zotero. Zinthu zoterezi zimafuna zipangizo zolondola kwambiri chifukwa cha njira yapadera yogwirira ntchito, yomwe imadalira mfundo yochepetsera kukangana pakati pa ...
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