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Croatia - Krka waterfalls
2371 visits
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相片 12187
4558 visits
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相片 12298
4789 visits
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相片 12040
5327 visits
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相片 12200
5430 visits
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LED laser (5,5W power) close-up showing stacked diodes one on another.
5857 visits
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LED laser (5,5W power) close-up showing stacked diodes one on another.
6708 visits
