Zida zakuthupi mu 2022 zikusintha mosalekeza, ndi matekinoloje atsopano osangalatsa ndi chitukuko chikukula nthawi zonse.M'munda wa zida zofewa, opanga akupikisana kuti apange njira zosinthika kwambiri, zopepuka, poyang'ana kukhazikika.Komabe, pali ma ballistic solutio ambiri ...
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