Проверка чистоты борной кислоты
На видео показана проверка борной кислоты на пригодность к изготовлению высококачественных люминофоров.
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5 years ago 00:42:19 3.8K
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7 years ago 00:01:54 2.1K
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3 years ago 00:00:27 882
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7 years ago 00:07:11 1.5K
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1 year ago 00:01:49 7.7K
6 years ago 00:00:59 1.7K
6 years ago 00:42:45 5.8K
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11 months ago 00:03:22 1.2K
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10 months ago 00:01:13 13.7K
5 years ago 00:42:45 160
