China chadzikhazikitsa ngati chimodzi mwazinthu zofunika kwambiri zamankhwala zapadera padziko lonse lapansi, Ndi kusankha kwakukulu kwa opanga zogulitsa zogwiritsidwa ntchito zosiyanasiyana. Mwachitsanzo, Mankhwala ngati 2-methoxy-2-methylpopane, 2-Butoxyethanol, ndi ...
-300x199-1.webp)