15 - Which one is a disadvantage of UV emitters? Hangisi UV yayıcıların dezavantajıdır? A) minimum operation cost minimum işletme maliyeti   B) No formation of disinfection by products Ürünlerde dezenfeksiyon oluşmaması   C) simplest ,homogeneity, low cost, reproducibility, controllability en basit, homojenlik, düşük maliyet, tekrarlanabilirlik, kontrol edilebilirlik D) it does not penetrate glass paper or plastic cam kağıda veya plastiğe nüfuz etmez E) max operational safety

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