http://mporshnev.livejournal.com/ ([identity profile] mporshnev.livejournal.com) wrote in [community profile] useless_faq 2006-05-07 05:13 pm (UTC)

Ультрафиолетовые лампы, которые делают из специального стекла, они такие дорогущие... Делаю вывод, что любое дешёвое стекло почти не пропускает ультрафиолет.
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