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02/05 ¼öÁú¿À¿°-ÀûÁ¶(red tide)Çö»ó
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02/04 ¼öÁú¿À¿°-ÇϼöÀÇ Ã³¸®(Çϼöµµ:drainage system)
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02/04 ¼öÁú¿À¿°-°í½Ã Æó¼ö(sewage)ó¸®ÀåÀÇ Ã³¸®°øÁ¤
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01/29Ȧ·Î±×·¡ÇÇ(holography)
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01/29È£¸£¸ó(hormone)
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01/29Çü°(section shape steel)
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01/29ÇÙ¹«±â-¼ö¼ÒÆøź(hydrogen bomb)ÀÇ ´Ü¸é
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01/29Çٺп(nuclear fission)
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01/29ÇÙ¿¬·á(nuclear fuel)
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02/04 ÇÙ¿¬·á-¿ì¶ó´½
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02/04 ÇÙ¿¬·á-³óÃà¿ì¶ó´½(enriched uranium/concentrated uranium)
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01/29 ÇÙ¿¬·áÁÖ±â(nuclear fuel cycle)
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