Monga ife tonse tikudziwa, chandamale zakuthupi ndi chandamale chuma cha mkulu liwiro nayipitsa particles.Pali zofananira zambiri za zida zomwe mukufuna, monga zitsulo, ma aloyi, ma oxides ndi zina zotero.Mafakitale omwe amagwiritsidwa ntchito ndi osiyana, ndipo amagwiritsidwa ntchito kwambiri.Ndiye zitsulo zomwe anthu ambiri amazifuna ndi ziti?Zingati ...
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