Indlela yokukhetha isihluzo sesirinji eyona njongo yokucoca ulwelo kunye nokususa amasuntswana, intlenga, iimicroorganisms, njl.njl. Zisetyenziswa kakhulu kwibhayoloji, ikhemistri, isayensi yokusingqongileyo, amayeza, kunye namayeza.Esi sihluzo sithandwa kakhulu ngenxa yefiltrati egqwesileyo...
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