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Neredzamā gaisma - rentgenstari, ultravioletais starojums, infrasarkanais sta...
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Neredzamā gaisma - rentgenstari, ultravioletais starojums, infrasarkanais sta...
Secondary schoolPresentations24 -
Rentgenstarojums
Secondary schoolPresentations9 -
Siltumstarojums
Secondary schoolPresentations17
Neredzamā gaisma - rentgenstari, ultr...
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