{"id":8719,"date":"2020-09-16T21:59:32","date_gmt":"2020-09-16T12:59:32","guid":{"rendered":"https:\/\/www.stechstar.com\/user\/wordpress\/?p=8719"},"modified":"2020-09-16T21:59:32","modified_gmt":"2020-09-16T12:59:32","slug":"%ea%b8%88%ec%84%b1-%eb%8c%80%ea%b8%b0%ec%97%90%ec%84%9c-%ec%83%9d%eb%aa%85-%ed%99%9c%eb%8f%99-%ed%9d%94%ec%a0%81-%ec%a0%9c%ec%8b%9c%ed%95%98%eb%8a%94-%eb%ac%bc%ec%a7%88-%eb%b0%9c%ea%b2%ac","status":"publish","type":"post","link":"https:\/\/www.stechstar.com\/user\/wordpress\/%ea%b8%88%ec%84%b1-%eb%8c%80%ea%b8%b0%ec%97%90%ec%84%9c-%ec%83%9d%eb%aa%85-%ed%99%9c%eb%8f%99-%ed%9d%94%ec%a0%81-%ec%a0%9c%ec%8b%9c%ed%95%98%eb%8a%94-%eb%ac%bc%ec%a7%88-%eb%b0%9c%ea%b2%ac\/","title":{"rendered":"\uae08\uc131 \ub300\uae30\uc5d0\uc11c \uc0dd\uba85 \ud65c\ub3d9 \ud754\uc801 \uc81c\uc2dc\ud558\ub294 \ubb3c\uc9c8 \ubc1c\uacac"},"content":{"rendered":"<div id=\"article_title\">\n<h2>\uae08\uc131 \ub300\uae30\uc5d0\uc11c \uc0dd\uba85 \ud65c\ub3d9 \ud754\uc801 \uc81c\uc2dc\ud558\ub294 \ubb3c\uc9c8 \ubc1c\uacac<\/h2>\n<p><span class=\"date\">2020.09.15 10:12<\/span><\/div>\n<div id=\"article_body\">\n<div class=\"pic_c\"><img decoding=\"async\" src=\"https:\/\/www.stechstar.com\/user\/zbxe\/files\/attach\/images\/2843\/294\/072\/aa626fce6873f37c53ecc24e59652d69.jpg\" alt=\"\uc77c\ubcf8 \ud0d0\uc0ac\uc11c \uc544\uce74\uc4f0\ud0a4\uac00 \uc790\uc678\uc120\uc744 \uc774\uc6a9\ud574 \ucd2c\uc601\ud55c \uae08\uc131\uc758 \ub300\uae30 \ubaa8\uc2b5\uc774\ub2e4. \ub450\ud130\uc6b4 \ub300\uae30 \ub54c\ubb38\uc5d0 \uc9c0\ud45c\uba74\uc740 \uace0\uc628 \uace0\uc555\uc758 \uc9c0\uc625 \uac19\uc740 \ud658\uacbd\uc774\uc9c0\ub9cc, \ub300\uae30\uc640 \uad6c\ub984 \uc0ac\uc774\uc5d0\ub294 \uc0dd\uba85\uc774 \uc0b4 \uc218 \uc788\ub294 \ud658\uacbd\uc774 \uc77c\ubd80 \uc788\uc744 \uac83\uc73c\ub85c \ucd94\uc815\ub41c\ub2e4. \uc774\ubc88\uc5d0 \ubbf8\uad6d\uacfc \uc601\uad6d \uc5f0\uad6c\ud300\uc740 \ub300\uae30\uc5d0\uc11c \uc0dd\uba85\uccb4\uac00 \uc0dd\uc0b0\ud558\uc9c0 \uc54a\uc73c\uba74 \ubc1c\uacac\ud558\uae30 \ud798\ub4e0 \ubb3c\uc9c8\uc778 \uc778\ud654\uc218\uc18c\ub97c \ubc1c\uacac\ud588\ub2e4. \uae08\uc131\uc5d0 \uc0dd\uba85\uccb4\uac00 \uc874\uc7ac\ud560\uc9c0 \uad00\uc2ec\uc774 \ubaa8\uc778\ub2e4. JAXA \uc81c\uacf5\" data-autoattach=\"success\" data-cke-saved-src=\".\/files\/attach\/images\/2843\/294\/072\/aa626fce6873f37c53ecc24e59652d69.jpg\"><\/p>\n<div class=\"pic_desc\">\n<div class=\"pic_desc_txt\">\uc77c\ubcf8 \ud0d0\uc0ac\uc11c \uc544\uce74\uc4f0\ud0a4\uac00 \uc790\uc678\uc120\uc744 \uc774\uc6a9\ud574 \ucd2c\uc601\ud55c \uae08\uc131\uc758 \ub300\uae30 \ubaa8\uc2b5\uc774\ub2e4. \ub450\ud130\uc6b4 \ub300\uae30 \ub54c\ubb38\uc5d0 \uc9c0\ud45c\uba74\uc740 \uace0\uc628 \uace0\uc555\uc758 \uc9c0\uc625 \uac19\uc740 \ud658\uacbd\uc774\uc9c0\ub9cc, \ub300\uae30\uc640 \uad6c\ub984 \uc0ac\uc774\uc5d0\ub294 \uc0dd\uba85\uc774 \uc0b4 \uc218 \uc788\ub294 \ud658\uacbd\uc774 \uc77c\ubd80 \uc788\uc744 \uac83\uc73c\ub85c \ucd94\uc815\ub41c\ub2e4. \uc774\ubc88\uc5d0 \ubbf8\uad6d\uacfc \uc601\uad6d \uc5f0\uad6c\ud300\uc740 \ub300\uae30\uc5d0\uc11c \uc0dd\uba85\uccb4\uac00 \uc0dd\uc0b0\ud558\uc9c0 \uc54a\uc73c\uba74 \ubc1c\uacac\ud558\uae30 \ud798\ub4e0 \ubb3c\uc9c8\uc778 \uc778\ud654\uc218\uc18c\ub97c \ubc1c\uacac\ud588\ub2e4. \uae08\uc131\uc5d0 \uc0dd\uba85\uccb4\uac00 \uc874\uc7ac\ud560\uc9c0 \uad00\uc2ec\uc774 \ubaa8\uc778\ub2e4. JAXA \uc81c\uacf5<\/div>\n<\/div>\n<\/div>\n<p>\uae08\uc131\uc758 \ub300\uae30\uc5d0\uc11c \ud604\uc7ac\uae4c\uc9c0\uc758 \uc9c0\uc9c8\ud559, \ub300\uae30\uacfc\ud559 \uc9c0\uc2dd\uc73c\ub85c\ub294 \ud0c4\uc0dd \uacfc\uc815\uc744 \uc124\uba85\ud560 \uc218 \uc5c6\ub294 \uae30\uccb4 \ubb3c\uc9c8\uc774 \ubc1c\uacac\ub410\ub2e4. \uac00\uc7a5 \uc720\ub825\ud55c \uc0dd\uc131 \uacbd\ub85c\ub294 \ubbf8\uc0dd\ubb3c \ub4f1 \uc0dd\uba85\uccb4\uc758 \ud65c\ub3d9\uc73c\ub85c, \ucc9c\ubb38\ud559\uacc4\ub294 \uae08\uc131\uc758 \ub300\uae30\uc5d0 \ubbf8\uc0dd\ubb3c \ud615\ud0dc\uc758 \uc0dd\uba85\uccb4\uac00 \uc874\uc7ac\ud560 \uac00\ub2a5\uc131\uc744 \uc81c\uae30\ud588\ub2e4.<\/p>\n<p>\uc81c\uc778 \uadf8\ub808\uc774\ube0c\uc2a4 \uc601\uad6d \ucf00\uc784\ube0c\ub9ac\uc9c0\ub300 \ucc9c\ubb38\ud559\uc5f0\uad6c\uc18c \uc5f0\uad6c\uc6d0\uacfc \uce74\ub514\ud504\ub300, \ubbf8\uad6d \ub3d9\uc544\uc2dc\uc544\uad00\uce21\uc18c, \ub9e4\uc0ac\ucd94\uc138\uce20\uacf5\ub300(MIT) \ub4f1 \uacf5\ub3d9 \uc5f0\uad6c\ud300\uc740 \uae08\uc131 \ub300\uae30\ub97c \uc9c0\uc0c1 \ub9dd\uc6d0\uacbd \ub450 \uacf3\uc758 \uad11\ud559 \ubd84\uc11d\uc7a5\ube44\ub85c \uad00\uce21\ud55c \uacb0\uacfc \u2018\uc778\ud654\uc218\uc18c(\ud3ec\uc2a4\ud540)\u2019 \uae30\uccb4\uac00 \ud3ec\ud568\ub3fc \uc788\ub2e4\ub294 \uc0ac\uc2e4\uc744 \ubc1c\uacac\ud574 \ucc9c\ubb38\ud559 \ubd84\uc57c \uad6d\uc81c \ud559\uc220\uc9c0 \u2018\ub124\uc774\ucc98 \ucc9c\ubb38\ud559\u2019 14\uc77c\uc790(\ud604\uc9c0\uc2dc\uac04)\uc5d0 \ubc1c\ud45c\ud588\ub2e4.<\/p>\n<p>\uae08\uc131\uc740 \ud0dc\uc591\uacc4 \ub0b4\uc5d0\uc11c\ub3c4 \uac00\uc7a5 \uc0dd\uba85\uccb4\uac00 \uc0b4\uae30 \uc5b4\ub835\ub2e4\uace0 \uc5ec\uaca8\uc838 \uc628 \ud589\uc131\uc774\ub2e4. \uc9c0\uad6c\ubcf4\ub2e4 \ud0dc\uc591\uc5d0 30% \uac00\uae4c\uc6cc \ud0dc\uc591\uc5f4\uc744 \ub354 \ub9ce\uc774 \ubc1b\ub294 \ub370\ub2e4, \ub450\uaebc\uc6b4 \uc774\uc0b0\ud654\ud0c4\uc18c \ub300\uae30\uac00 \ud45c\uba74\uc744 \ud718\uac10\uace0 \uc788\uc5b4 \uac15\ud55c \uc628\uc2e4\ud6a8\uacfc\ub85c \uc9c0\ud45c\uba74 \ud3c9\uade0 \uae30\uc628\uc774 \ud0dc\uc591\uacc4\uc5d0\uc11c \uac00\uc7a5 \ub192\uc740 460\ub3c4 \uc774\uc0c1\uc774\ub2e4. \uae30\uc555\ub3c4 \ub192\uc544\uc11c \uc9c0\uc0c1\uc5d0\uc11c \uc9c0\uad6c\uc758 91\ubc30\uc5d0 \ud574\ub2f9\ud558\ub294 91\uae30\uc555\uc758 \uc555\ub825\uc744 \ubc1b\ub294\ub2e4. \ubc14\ub2e4 \uc18d 910m \uc9c0\uc810\uc5d0\uc11c \ubc1b\ub294 \uc218\uc555\uacfc \uac19\ub2e4. \uc561\uccb4 \uc0c1\ud0dc\uc758 \ubb3c\uc740 \ub2f9\uc5f0\ud788 \uc874\uc7ac\ud558\uc9c0 \uc54a\ub294\ub2e4.<\/p>\n<p>\uc774\ub807\ub2e4 \ubcf4\ub2c8 \uc678\uacc4\uc0dd\uba85\uccb4\uc758 \uc874\uc7ac\ub97c \ucc3e\uc544\uc628 \uc6b0\uc8fc\uc0dd\ubb3c\ud559\uc790\ub4e4\ub3c4 \uc628\ub3c4\uac00 \ub354 \ub0ae\uace0 \ubb3c\uc774 \uc561\uccb4\ub85c \uc874\uc7ac\ud560 \uac00\ub2a5\uc131\uc774 \uc788\ub294 \ud0dc\uc591\uacc4 \uc678\uacfd \ud589\uc131\uc5d0\uc11c \uc0dd\uba85\uc758 \ud754\uc801\uc744 \ucc3e\uace0 \uc788\uc5c8\ub2e4.<\/p>\n<p>\uc5f0\uad6c\ud300\uc740 \uce60\ub808 \ubd81\ubd80 \uc544\ud0c0\uce74\ub9c8 \uc0ac\ub9c9\uc5d0 \uc788\ub294 \uc804\ud30c\ub9dd\uc6d0\uacbd \uc9d1\ud569\uccb4\uc778 \uc544\ud0c0\uce74\ub9c8\ub300\ud615\ubc00\ub9ac\ubbf8\ud130\uc9d1\ud569\uccb4(ALMA)\uc640 \ubbf8\uad6d \ud558\uc640\uc774\uc5d0 \uc704\uce58\ud55c \uc81c\uc784\uc2a4\ud074\ub7ec\ud06c\ub9e5\uc2a4\uc6f0\ub9dd\uc6d0\uacbd(JCMT)\uc5d0\uc11c \ube5b\uc758 \ud30c\uc7a5 \ub4f1 \uad11\ud559\uc801 \ud2b9\uc131\uc744 \uce21\uc815\ud558\ub294 \ubd84\uad11\ud559 \uc7a5\ube44\ub97c \uc774\uc6a9\ud574 \uae08\uc131 \ub300\uae30 \uc18d \ubb3c\uc9c8\uc744 \ubd84\uc11d\ud588\ub2e4. \uadf8 \uacb0\uacfc \uc778\ud654\uc218\uc18c \uae30\uccb4\uac00 \ub300\uae30 \uc911\uc5d0 20ppb \uc874\uc7ac\ud55c\ub2e4\ub294 \uc0ac\uc2e4\uc744 \ud655\uc778\ud588\ub2e4. ppb\ub294 \ub300\uae30 10\uc5b5g\uc5d0 \ud3ec\ud568\ub41c \ubbf8\ub7c9\ubb3c\uc9c8\uc758 \uc9c8\ub7c9\uc744 g\uc73c\ub85c \ud45c\uc2dc\ud55c \ub2e8\uc704\ub85c, 20ppb\ub294 \ub300\uae30 \uc911\uc5d0 \uc778\ud654\uc218\uc18c\uac00 0.000002% \ub4e4\uc5b4\uc788\ub2e4\ub294 \ub73b\uc774\ub2e4.<\/p>\n<p>\ubb38\uc81c\ub294 \uae08\uc131\uc758 \uc9c0\uc9c8\uacfc \ub300\uae30 \ud658\uacbd\uc5d0\uc11c\ub294 \uc778\ud654\uc218\uc18c\uac00 \uae30\uccb4\ub85c \uc874\uc7ac\ud558\uae30\uac00 \ub9e4\uc6b0 \uc5b4\ub835\ub2e4\ub294 \uc0ac\uc2e4\uc774\ub2e4. \uc2ec\ucc44\uacbd \ud55c\uad6d\ucc9c\ubb38\uc5f0\uad6c\uc6d0 \uc6b0\uc8fc\uacfc\ud559\ubcf8\ubd80 \uc120\uc784\uc5f0\uad6c\uc6d0\uc740 \u201c\uc778\ud654\uc218\uc18c\ub294 \ubaa9\uc131\uacfc \ud1a0\uc131\uc5d0\uc11c\ub9cc \ubc1c\uacac\ub418\ub358 \ubb3c\uc9c8\u201d\uc774\ub77c\uace0 \ub9d0\ud588\ub2e4. \uc9c0\uac01\uc744 \uac16\uc9c0 \uc54a\uc740 \uac00\uc2a4\ud589\uc131\uc5d0\uc11c \uc8fc\ub85c \ubc1c\uacac\ub410\ub2e4\ub294 \ub73b\uc774\ub2e4. \uc218\uc18c \uc6d0\uc18c\uac00 \ubd80\uc871\ud55c \uae08\uc131 \ub4f1 \uc9c0\uad6c\ud615 \ud589\uc131\uc5d0\uc11c \uc778\uc740 \uc0b0\uc18c\uc640 \uacb0\ud569\ud55c \ud615\ud0dc\ub85c \ub354 \uc548\uc815\uc801\uc73c\ub85c \uc874\uc7ac\ud55c\ub2e4. \uc6b0\uc8fc\uc0dd\ubb3c\ud559\uc790\uc778 \uc774\uac15\ud658 \uacfc\ud559\uae30\uc220\uc815\ubcf4\ud1b5\uc2e0\ubd80 \uacfc\ud559\uae30\uc220\ubcf4\uc88c\uad00\uc740 \u201c\ubd88\uc548\uc815\ud55c \ubb3c\uc9c8\uc774\uae30 \ub54c\ubb38\uc5d0 \ub9cc\ub4e4\uc5b4\uc9c0\uba74 \uace7\ubc14\ub85c \ub2e4\ub978 \ubb3c\uc9c8\ub85c \uc0b0\ud654\ub41c\ub2e4\u201d\uba70 \u201c\ub04a\uc784\uc5c6\uc774 \uc0c8\ub86d\uac8c \ub9cc\ub4e4\uc5b4\uc838\uc57c\ub9cc \ub300\uae30 \uc548\uc5d0\uc11c \uad00\uce21\uc774 \uac00\ub2a5\ud558\ub2e4\u201d\uace0 \ub9d0\ud588\ub2e4.<\/p>\n<p>\uc5f0\uad6c\ud300\uc740 \uc218\uc18c\uac00 \uacb0\ud569\ub41c \uc778\ud654\uc218\uc18c\uac00 \uc548\uc815\uc801\uc73c\ub85c \uc874\uc7ac\ud558\uae30 \uc704\ud574\uc11c\ub294 \ub450 \uac00\uc9c0 \ubc29\ubc95\ubc16\uc5d0 \uc5c6\ub2e4\uace0 \uc8fc\uc7a5\ud588\ub2e4. \uba3c\uc800 \uc778\ub958\uac00 \uc544\uc9c1 \ubaa8\ub974\ub294 \uc0c8\ub85c\uc6b4 \uc9c0\uc9c8\ud559 \ubc0f \ub300\uae30\uacfc\ud559\uc801 \uc0dd\uc131 \uacfc\uc815\uc774 \uc874\uc7ac\ud560 \uac00\ub2a5\uc131\uc774\ub2e4. \uad6c\ub984\uc774\ub098 \uc9c0\ud45c, \uc9c0\ud558 \ub4f1\uc5d0\uc11c\ud55c \uc0c8\ub85c\uc6b4 \ud654\ud559\uc801 \ud569\uc131 \uacfc\uc815\uc774 \uc874\uc7ac\ud560 \uac00\ub2a5\uc131\uc774\ub2e4. \ub098\uba38\uc9c0 \ud558\ub098\uc758 \uac00\ub2a5\uc131\uc740 \ubbf8\uc0dd\ubb3c\uc774 \uc0dd\uc0b0\ud588\uc744 \uac00\ub2a5\uc131\uc774\ub2e4. \uc774 \ubcf4\uc88c\uad00\uc740 \u201c\ub9e4\uc6b0 \ub3c5\uc131\uc774 \uac15\ud55c \ubb3c\uc9c8\ub85c \uc9c0\uad6c\uc5d0\uc11c\ub294 \uc0b0\uc18c\ub97c \uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \uc7a5\ub0b4\ubbf8\uc0dd\ubb3c\uc774\ub098 \uc2ec\ud574\u00b7\ub2aa \ubbf8\uc0dd\ubb3c \ub4f1 \ud610\uae30\uc131 \ubbf8\uc0dd\ubb3c\uc774 \uc0dd\uc0b0\ud55c\ub2e4\u201d\uace0 \ub9d0\ud588\ub2e4.<\/p>\n<p>\uc5f0\uad6c\ud300\uc758 \ud074\ub77c\ub77c \uc18c\uc0ac\uc2e4\ubc14MIT \uc5f0\uad6c\uc6d0 \uc5ed\uc2dc \u201c\uc9c0\uac01\uc744 \uc9c0\ub2cc \ud589\uc131 \uc911 \uc778\ud654\uc218\uc18c\ub97c \ubc1c\uacac\ud560 \uc218 \uc788\ub294 \uc720\uc77c\ud55c \ud589\uc131\uc740 \uc9c0\uad6c\uc600\uace0 \uadf8 \uc774\uc720\ub294 \uc0dd\uba85\uccb4\u201d\ub77c\uba70 \u201c\uc6b0\ub9ac\ub294 \uc0dd\uba85\uccb4 \uc5c6\uc774 \uc774 \ubb3c\uc9c8\uc774 \uc0dd\uc131\ub420 \uc218 \uc788\ub294 \ubaa8\ub4e0 \uac00\ub2a5\uc131\uc744 \ud0d0\uc0c9\ud588\ub2e4. \ucc9c\ubb38\ud559\uc790\ub4e4\uc774 \ucd94\uac00 \uc5f0\uad6c\ub97c \ud1b5\ud574 \ub2e4\ub978 \uac00\ub2a5\uc131\uc744 \ucc3e\uc544 \uc5f0\uad6c\ub97c \ud574 \uc8fc\uae38 \uae30\ub300\ud558\uace0 \uc788\ub2e4\u201d\uace0 \ub9d0\ud588\ub2e4.<\/p>\n<div class=\"pic_c\"><img decoding=\"async\" src=\"https:\/\/www.stechstar.com\/user\/zbxe\/files\/attach\/images\/2843\/294\/072\/66f0fd7423d212de7eaf2d0b780ecb73.jpg\" alt=\"\ud558\uc640\uc774 \uc81c\uc784\uc2a4\ud074\ub7ec\ud06c\ub9e5\uc2a4\uc6f0\ub9dd\uc6d0\uacbd(JCMT, \ub179\uc0c9)\uacfc \uce60\ub808 \uc544\ud0c0\uce74\ub9c8\ub300\ud615\ubc00\ub9ac\ubbf8\ud130\uc9d1\ud569\uccb4(ALMA, \ubd89\uc740\uc0c9)\uc758 \uad00\uce21 \uacb0\uacfc\ub2e4. \uac00\uc6b4\ub370 \ub450 \uad00\uce21\uac12\uc758 \uc624\ucc28\uac00 0\uc778 \ubd80\ubd84\uc774 \ubcf4\uc778\ub2e4. \ub450 \uce21\uc815\uac12\uc774 \uc77c\uce58\ud558\ub294 \uadf8\ub798\ud504\ub97c \ubc14\ud0d5\uc73c\ub85c \ub300\uae30\uc5d0 \uc57d 20ppb\uc758 \uc778\ud654\uc218\uc18c\uac00 \ud3ec\ud568\ub3fc \uc788\ub2e4\uace0 \uc5f0\uad6c\ud300\uc740 \uacb0\ub860 \ub0b4\ub838\ub2e4. \ub124\uc774\ucc98 \ucc9c\ubb38\ud559 \ub17c\ubb38 \ucea1\uccd0\" data-autoattach=\"success\" data-cke-saved-src=\".\/files\/attach\/images\/2843\/294\/072\/66f0fd7423d212de7eaf2d0b780ecb73.jpg\"><\/p>\n<div class=\"pic_desc\">\n<div class=\"pic_desc_txt\">\ud558\uc640\uc774 \uc81c\uc784\uc2a4\ud074\ub7ec\ud06c\ub9e5\uc2a4\uc6f0\ub9dd\uc6d0\uacbd(JCMT, \ub179\uc0c9)\uacfc \uce60\ub808 \uc544\ud0c0\uce74\ub9c8\ub300\ud615\ubc00\ub9ac\ubbf8\ud130\uc9d1\ud569\uccb4(ALMA, \ubd89\uc740\uc0c9)\uc758 \uad00\uce21 \uacb0\uacfc\ub2e4. \uac00\uc6b4\ub370 \ub450 \uad00\uce21\uac12\uc758 \uc624\ucc28\uac00 0\uc778 \ubd80\ubd84\uc774 \ubcf4\uc778\ub2e4. \ub450 \uce21\uc815\uac12\uc774 \uc77c\uce58\ud558\ub294 \uadf8\ub798\ud504\ub97c \ubc14\ud0d5\uc73c\ub85c \ub300\uae30\uc5d0 \uc57d 20ppb\uc758 \uc778\ud654\uc218\uc18c\uac00 \ud3ec\ud568\ub3fc \uc788\ub2e4\uace0 \uc5f0\uad6c\ud300\uc740 \uacb0\ub860 \ub0b4\ub838\ub2e4. \ub124\uc774\ucc98 \ucc9c\ubb38\ud559 \ub17c\ubb38 \ucea1\uccd0<\/div>\n<\/div>\n<\/div>\n<p>\ucc9c\ubb38\ud559\uc790\ub4e4\uc740 \uae08\uc131\uc774 \uc0dd\uba85\uccb4\uac00 \uc874\uc7ac\ud558\uae30\uc5d0 \ub9e4\uc6b0 \uc5b4\ub824\uc6b4 \ud658\uacbd\uc774\uc9c0\ub9cc, \ub300\uae30\ub294 \uc0c1\ub300\uc801\uc73c\ub85c \ub35c \ud639\ub3c5\ud55c \ud658\uacbd\uc778 \ub9cc\ud07c \ub9cc\uc57d \uc778\ud654\uc218\uc18c\uac00 \uc0dd\uba85\uccb4\uc758 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