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1·As long as the water is clear enough not to absorb the rays, exposing it to a discharge lamp will destroy the DNA of viruses, bacteria and protozoa that could otherwise cause illness when swallowed.

只要水足够清澈不吸收光线，放到放电管下就会破坏水中能引起疾病的病毒、细菌和原生动物的DNA。