Indlela Yokukhetha Isihlungi Sesirinji Injongo eyinhloko yezihlungi zesirinji ukuhlunga uketshezi nokukhipha izinhlayiya, izinhlayiya, ama-microorganisms, njll. Zisetshenziswa kakhulu ku-biology, chemistry, isayensi yezemvelo, imithi, kanye nemithi.Lesi sihlungi sithandwa kakhulu nge-filtrati yaso enhle kakhulu...
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