{"id":147218,"date":"2024-04-27T13:38:19","date_gmt":"2024-04-27T13:38:19","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ed%91%9c%eb%a9%b4-%ec%9d%8c%ed%96%a5%ed%8c%8c-saw-%ea%b0%80%ec%8a%a4-%ec%84%bc%ec%84%9c\/"},"modified":"2024-04-27T13:38:26","modified_gmt":"2024-04-27T13:38:26","slug":"%ed%91%9c%eb%a9%b4-%ec%9d%8c%ed%96%a5%ed%8c%8c-saw-%ea%b0%80%ec%8a%a4-%ec%84%bc%ec%84%9c","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ed%91%9c%eb%a9%b4-%ec%9d%8c%ed%96%a5%ed%8c%8c-saw-%ea%b0%80%ec%8a%a4-%ec%84%bc%ec%84%9c\/","title":{"rendered":"\ud45c\uba74 \uc74c\ud5a5\ud30c (SAW) \uac00\uc2a4 \uc13c\uc11c"},"content":{"rendered":"<p class=\"sidekick\">SAW \uac00\uc2a4 \uc13c\uc11c\uc758 \uc6d0\ub9ac\uc640 \uad6c\uc870\ub97c \ud0d0\uad6c\ud558\uc5ec \uacf5\uc7a5 \uc548\uc804, \ud658\uacbd \ubaa8\ub2c8\ud130\ub9c1, \uc758\ub8cc \uc9c4\ub2e8 \ub4f1\uc5d0\uc11c\uc758 \uc911\uc694\uc131\uacfc \uc751\uc6a9\uc744 \ud574\uc124\ud558\ub294 \uae30\uc0ac\uc785\ub2c8\ub2e4.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2024\/04\/\ud45c\uba74-\uc74c\ud5a5\ud30c-(SAW)-\uac00\uc2a4-\uc13c\uc11c.png\" alt=\"\ud45c\uba74 \uc74c\ud5a5\ud30c (SAW) \uac00\uc2a4 \uc13c\uc11c\"\/><\/p>\n<h2>\ud45c\uba74 \uc74c\ud5a5\ud30c(SAW) \uac00\uc2a4 \uc13c\uc11c\uc758 \uac1c\ub150 \ubc0f \uc6d0\ub9ac<\/h2>\n<p>\ud604\ub300 \uae30\uc220 \uc0ac\ud68c\uc5d0\uc11c \uac00\uc2a4 \uac10\uc9c0\ub294 \uacf5\uc7a5\uc758 \uc548\uc804\ud55c \uc6b4\uc601, \ud658\uacbd \ubaa8\ub2c8\ud130\ub9c1, \uc758\ub8cc \uc9c4\ub2e8 \ub4f1 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \ub9e4\uc6b0 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubc30\uacbd \uc544\ub798 \ud45c\uba74 \uc74c\ud5a5\ud30c(Surface Acoustic Wave, SAW) \uac00\uc2a4 \uc13c\uc11c\uac00 \ud070 \uc8fc\ubaa9\uc744 \ubc1b\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ud45c\uba74 \uc74c\ud5a5\ud30c \uae30\uc220\uc740 \ub9c8\uc774\ud06c\ub85c \uc2a4\ucf00\uc77c\uc758 \uc74c\ud30c\ub97c \uc774\uc6a9\ud574 \ubbf8\uc138\ud55c \ubb3c\uc9c8\uc758 \uc874\uc7ac\uc640 \uadf8 \ub18d\ub3c4\ub97c \uc815\ud655\ud558\uac8c \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \uc12c\uc138\ud568\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ubcf8 \uae00\uc5d0\uc11c\ub294 SAW \uac00\uc2a4 \uc13c\uc11c\uc758 \uae30\ubcf8\uc801\uc778 \uc6d0\ub9ac\uc640 \uad6c\uc870, \uadf8\ub9ac\uace0 \uc791\ub3d9 \ubc29\uc2dd\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uace0\uc790 \ud569\ub2c8\ub2e4.<\/p>\n<h2>SAW \uac00\uc2a4 \uc13c\uc11c\uc758 \uc6d0\ub9ac<\/h2>\n<p>\ud45c\uba74 \uc74c\ud5a5\ud30c \uc13c\uc11c\ub294 \uae30\ubcf8\uc801\uc73c\ub85c \ub450 \uac00\uc9c0 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\uc2b5\ub2c8\ub2e4: \ud53c\uc5d0\uc870 \uc804\uae30 \uc18c\uc7ac\ub85c \ub9cc\ub4e0 \ubc1c\uc9c4\uae30\uc640 \uac80\ucd9c\uae30\uc785\ub2c8\ub2e4. \uc774 \uc18c\uc7ac\ub294 \uae30\uacc4\uc801 \uc555\ub825\uc744 \ubc1b\uc558\uc744 \ub54c \uc804\uae30\uc801 \uc2e0\ud638\ub97c \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\ub294 \ud2b9\uc131\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ubc18\ub300\ub85c \uc804\uae30\uc801 \uc2e0\ud638\ub97c \uac00\ud588\uc744 \ub54c \uae30\uacc4\uc801 \ubcc0\ud654\ub97c \uc77c\uc73c\ud0a4\uae30\ub3c4 \ud569\ub2c8\ub2e4. \uc774 \ub450 \uac00\uc9c0 \ud2b9\uc131\uc744 \uc774\uc6a9\ud558\uc5ec, SAW \uc13c\uc11c\ub294 \uc804\uae30\uc801 \uc2e0\ud638\ub97c \uae30\uacc4\uc801 \uc74c\ud5a5\ud30c\ub85c \ubcc0\ud658\ud558\uace0, \uc774\ub97c \ub2e4\uc2dc \uc804\uae30\uc801 \uc2e0\ud638\ub85c \ubcc0\ud658\ud558\uc5ec \uac80\ucd9c\ud558\ub294 \ubc29\uc2dd\uc73c\ub85c \uc791\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n<ul>\n<li>\ubc1c\uc9c4\uae30: \ubc1c\uc9c4\uae30\ub294 \uc804\uae30 \uc2e0\ud638\ub97c \ubc1b\uc544 \ud45c\uba74 \uc74c\ud5a5\ud30c\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud30c\ub3d9\uc740 \uc13c\uc11c\uc758 \ud45c\uba74\uc744 \ub530\ub77c \uc804\ud30c\ub429\ub2c8\ub2e4.<\/li>\n<li>\uac80\ucd9c\uae30: \uc7a5\uce58\uc758 \ub2e4\ub978 \ucabd \ub05d\uc5d0 \uc704\uce58\ud55c \uac80\ucd9c\uae30\ub294 \ud45c\uba74 \uc74c\ud5a5\ud30c\ub97c \uc804\uae30 \uc2e0\ud638\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4. \ubb34\uac8c\uc640 \uc810\ucc29\uc131\uc744 \uac00\uc9c0\ub294 \uac00\uc2a4 \ubd84\uc790\ub4e4\uc774 \uc13c\uc11c\uc758 \ud45c\uba74\uc5d0 \ubd80\ucc29\ub418\uba74 \uc74c\ud5a5\ud30c\uc758 \uc18d\ub3c4\uac00 \ubcc0\ud558\uace0, \uc774\ub85c \uc778\ud574 \uc804\uae30 \uc2e0\ud638\uc758 \ud2b9\uc131\uc774 \ubcc0\ud654\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc989, SAW \uac00\uc2a4 \uc13c\uc11c\ub294 \ud2b9\uc815 \uac00\uc2a4 \ubd84\uc790\uac00 \uc13c\uc11c\uc758 \ud45c\uba74\uc5d0 \ud761\ucc29\ub418\uba74 \uc74c\ud5a5\ud30c\uc758 \uc804\ud30c \uc18d\ub3c4\uac00 \ubcc0\ud558\ub294 \uc6d0\ub9ac\ub97c \uc774\uc6a9\ud569\ub2c8\ub2e4. \uc74c\ud5a5\ud30c\uac00 \uc9c0\ub098\uac00\ub294 \uacbd\ub85c\uc758 \uc9c8\ub7c9\uc5d0 \ubcc0\ud654\uac00 \uc0dd\uae30\uae30 \ub54c\ubb38\uc5d0 \ubc1c\uc0dd\ud558\ub294 \ud604\uc0c1\uc73c\ub85c, \uc8fc\ub85c \uc13c\uc11c\uc758 \ud45c\uba74\uc5d0 \ucf54\ud305\ub41c \ubb3c\uc9c8\uc758 \ud761\ucc29 \ud2b9\uc131\uc5d0 \uc758\uc874\ud569\ub2c8\ub2e4.<\/p>\n<h2>SAW \uac00\uc2a4 \uc13c\uc11c\uc758 \uad6c\uc131 \ubc0f \uc74c\ud5a5\ud30c \uc0dd\uc131<\/h2>\n<p>SAW \uac00\uc2a4 \uc13c\uc11c\uc758 \ud575\uc2ec \uad6c\uc131 \uc694\uc18c\ub294 \ubc1c\uc9c4\uae30\uc640 \uac80\ucd9c\uae30 \uc678\uc5d0\ub3c4 \uc778\ud130\ub514\uc9c0\ud138 \ud2b8\ub79c\uc2a4\ub4c0\uc11c(IDT)\uac00 \ud3ec\ud568\ub429\ub2c8\ub2e4. IDT\ub294 \ubc1c\uc9c4\uae30\uc640 \uac80\ucd9c\uae30 \uc0ac\uc774\uc5d0 \uc704\uce58\ud558\uc5ec \uc804\uae30\uc801 \uc2e0\ud638\ub97c \uae30\uacc4\uc801\uc778 \uc74c\ud5a5\ud30c\ub85c, \uadf8\ub9ac\uace0 \uadf8 \ubc18\ub300\ub85c \ubcc0\ud658\ud558\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubcc0\ud658\uacfc\uc815\uc5d0\uc11c \ud53c\uc5d0\uc870 \uc804\uae30 \ud6a8\uacfc\uac00 \ubc1c\uc0dd\ud558\ub294\ub370, \uc774\ub294 \ubb3c\uc9c8\uc758 \ud45c\uba74\uc5d0 \uc804\uae30\uc7a5\uc744 \uac00\ud588\uc744 \ub54c \uc0c1\uc751\ud558\ub294 \uae30\uacc4\uc801 \ubcc0\ud615\uc774 \ubc1c\uc0dd\ud558\ub294 \ud604\uc0c1\uc744 \ub9d0\ud569\ub2c8\ub2e4.<\/p>\n<ol>\n<li>\uc804\uae30 \uc2e0\ud638\uc758 \uc785\ub825: \uc0ac\uc6a9\uc790 \ub610\ub294 \uae30\uae30\uc5d0\uc11c \uc804\uae30 \uc2e0\ud638\uac00 \uc778\ud130\ub514\uc9c0\ud138 \ud2b8\ub79c\uc2a4\ub4c0\uc11c(IDT)\ub85c \uc804\uc1a1\ub429\ub2c8\ub2e4.<\/li>\n<li>\uc74c\ud5a5\ud30c\uc758 \uc0dd\uc131: IDT\ub294 \uc804\uae30 \uc2e0\ud638\ub97c \ubc1b\uc544 \ubb3c\ub9ac\uc801\uc778 \uc74c\ud5a5\ud30c\ub97c \uc0dd\uc0b0\ud569\ub2c8\ub2e4. \uc774 \uc74c\ud30c\ub294 \uc13c\uc11c\uc758 \ud45c\uba74\uc5d0 \uc77c\uc815\ud55c \uc8fc\uae30\uc640 \uc9c4\ud3ed\uc73c\ub85c \uc804\ud30c\ub429\ub2c8\ub2e4.<\/li>\n<li>\uac00\uc2a4\uc758 \uac10\uc9c0: \uac00\uc2a4 \ubd84\uc790\ub294 \uc13c\uc11c \ud45c\uba74 \uc704\uc5d0 \ucf54\ud305\ub41c \uc120\ud0dd\uc801\uc778 \ubb3c\uc9c8\uc5d0 \ud761\ucc29\ub418\uc5b4 \uc74c\ud5a5\ud30c \uc804\ud30c\uc5d0 \uc601\ud5a5\uc744 \uc90d\ub2c8\ub2e4. <\/li>\n<li>\uc804\uae30 \uc2e0\ud638\uc758 \ubcc0\ud658\uacfc \ucd9c\ub825: \ubcc0\ud654\ub41c \uc74c\ud5a5\ud30c\ub294 IDT\ub97c \ud1b5\ud574 \ub2e4\uc2dc \uc804\uae30 \uc2e0\ud638\ub85c \ubcc0\ud658\ub418\uc5b4 \ucd9c\ub825\ub429\ub2c8\ub2e4.<\/li>\n<\/ol>\n<p>\uc774\uc640 \uac19\uc740 \uacfc\uc815\uc744 \ud1b5\ud574 SAW \uac00\uc2a4 \uc13c\uc11c\ub294 \uc8fc\ubcc0 \ud658\uacbd\uc5d0 \uc874\uc7ac\ud558\ub294 \ud2b9\uc815 \uac00\uc2a4 \ubd84\uc790\uc758 \uc874\uc7ac\uc640 \ub18d\ub3c4\ub97c \uac10\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \ubd80\ubd84\uc5d0\uc11c\ub294 SAW \uc13c\uc11c\uc758 \uc2e4\uc81c \uc751\uc6a9 \uc0ac\ub840\uc640 \uc7a5\ub2e8\uc810\uc5d0 \ub300\ud574 \ub354 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>SAW \uac00\uc2a4 \uc13c\uc11c\uc758 \uc751\uc6a9 \uc0ac\ub840\uc640 \uc7a5\ub2e8\uc810<\/h2>\n<p>SAW \uac00\uc2a4 \uc13c\uc11c\ub294 \uadf8 \ud2b9\uc131\uc0c1 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uc751\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ud658\uacbd \ubaa8\ub2c8\ud130\ub9c1\uc5d0\uc11c\ub294 \ub300\uae30 \uc911\uc758 \uc720\ud574 \uac00\uc2a4 \ub18d\ub3c4\ub97c \uce21\uc815\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc0b0\uc5c5 \uc7a5\uc18c\uc5d0\uc11c\ub294 \ud3ed\ubc1c\uc131\uc774\ub098 \ub3c5\uc131\uc774 \uc788\ub294 \uac00\uc2a4\ub97c \uac10\uc9c0\ud558\uc5ec \uc0ac\uace0\ub97c \uc608\ubc29\ud558\ub294 \ub370 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ub610\ud55c, \uc2dd\ud488 \uc0b0\uc5c5\uc5d0\uc11c\ub294 \uc2dd\ud488\uc758 \uc2e0\uc120\ub3c4\ub97c \ud310\ub2e8\ud558\ub294 \uae30\uc900\uc73c\ub85c\uc11c, \ud3ec\uc7a5 \ub0b4\ubd80\uc758 \uac00\uc2a4 \uc870\uc131\uc744 \ubd84\uc11d\ud558\ub294 \ub370 \uc4f0\uc785\ub2c8\ub2e4.<\/p>\n<ul>\n<li><strong>\ud658\uacbd \ubaa8\ub2c8\ud130\ub9c1:<\/strong> \uacf5\uae30 \uc911\uc758 \uc720\ub3c5 \uac00\uc2a4 \ub18d\ub3c4 \uac10\uc9c0 \ubc0f \ub300\uae30\uc9c8 \uce21\uc815\uc5d0 \ud65c\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\uc0b0\uc5c5 \uc548\uc804:<\/strong> \uac00\uc5f0\uc131 \ubc0f \uc720\ub3c5 \uac00\uc2a4\uc758 \ub204\ucd9c\uc744 \uc2e0\uc18d\ud788 \ud0d0\uc9c0\ud558\uc5ec \uc791\uc5c5\uc7a5\uc758 \uc548\uc804\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc2dd\ud488 \uc0b0\uc5c5:<\/strong> \ud3ec\uc7a5\ub41c \uc2dd\ud488\uc758 \uac00\uc2a4 \ubd84\uc11d\uc744 \ud1b5\ud574 \uc81c\ud488\uc758 \uc2e0\uc120\ub3c4\ub97c \ud655\uc778\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc758\ub8cc \uc9c4\ub2e8:<\/strong> \ud638\ud761 \ubd84\uc11d \ub4f1\uc744 \ud1b5\ud574 \ud658\uc790\uc758 \uac74\uac15 \uc0c1\ud0dc\ub97c \ubaa8\ub2c8\ud130\ub9c1 \ud558\uae30\ub3c4 \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc774 \uae30\uc220\uc758 \uc7a5\uc810\uc740 \ub6f0\uc5b4\ub09c \uac10\ub3c4\uc640 \ube60\ub978 \ubc18\uc751 \uc2dc\uac04, \uadf8\ub9ac\uace0 \ub0ae\uc740 \uc804\ub825 \uc18c\ubaa8\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, SAW \uc13c\uc11c\ub294 \ucef4\ud329\ud2b8\ud558\uace0 \uacbd\uc81c\uc801\uc774\uba70, \ub2e4\uc591\ud55c \uac00\uc2a4\uc5d0 \ub300\ud574 \ub192\uc740 \uc120\ud0dd\uc131\uc744 \uac00\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc, \uace0\uc628\uc774\ub098 \uc2b5\ud55c \ud658\uacbd, \uadf8\ub9ac\uace0 \uac15\ud55c \ud654\ud559\uc801 \ud658\uacbd\uc5d0\uc11c\ub294 \uc131\ub2a5\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc73c\uba70, \uc13c\uc11c \ud45c\uba74\uc758 \ucf54\ud305\uc774 \uc2dc\uac04\uc774 \uc9c0\ub0a8\uc5d0 \ub530\ub77c \uc5f4\ud654\ub418\uae30\ub3c4 \ud569\ub2c8\ub2e4.<\/p>\n<ul>\n<li><strong>\uc7a5\uc810:<\/strong> \ub192\uc740 \uac10\ub3c4, \ube60\ub978 \ubc18\uc751 \uc2dc\uac04, \ub0ae\uc740 \uc804\ub825 \uc18c\ubaa8, \uacbd\uc81c\uc131, \uc120\ud0dd\uc131<\/li>\n<li><strong>\ub2e8\uc810:<\/strong> \ud658\uacbd\uc801\uc778 \uc81c\uc57d(\uc628\ub3c4\uc640 \uc2b5\ub3c4), \ud654\ud559\uc801 \ub0b4\uad6c\uc131 \uc81c\ud55c, \uc7a5\uae30 \uc548\uc815\uc131 \ubb38\uc81c<\/li>\n<\/ul>\n<h2>\uacb0\ub860<\/h2>\n<p>\ud45c\uba74 \uc74c\ud5a5\ud30c(SAW) \uac00\uc2a4 \uc13c\uc11c \uae30\uc220\uc740 \ud604\ub300 \uc0ac\ud68c\uc758 \ub2e4\uc591\ud55c \uc694\uad6c \uc0ac\ud56d\uc744 \ub9cc\uc871\uc2dc\ud0a4\ub294 \uac15\ub825\ud55c \ub3c4\uad6c\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc13c\uc11c\ub4e4\uc740 \ub208\uc5d0 \ubcf4\uc774\uc9c0 \uc54a\ub294 \uac00\uc2a4\ub4e4\uc744 \uac10\uc9c0\ud558\uc5ec \ud658\uacbd \ubaa8\ub2c8\ud130\ub9c1, \uc0b0\uc5c5 \uc548\uc804, \uc2dd\ud488 \ud488\uc9c8 \uad00\ub9ac, \uadf8\ub9ac\uace0 \uc758\ub8cc \uc9c4\ub2e8\uacfc \uac19\uc740 \ubd84\uc57c\uc5d0\uc11c \uc911\uc694\ud55c \uc815\ubcf4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub2e4\uc591\ud55c \uac10\uc9c0 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub300\uc751\ud558\uae30 \uc704\ud574 \uc9c0\uc18d\uc801\uc778 \uc5f0\uad6c\uc640 \uac1c\uc120\uc774 \uc774\ub8e8\uc5b4\uc9c0\uace0 \uc788\uc73c\uba70, \uc774\ub294 \uc13c\uc11c \uae30\uc220\uc758 \ubc1c\uc804\uc744 \ub354\uc6b1 \uac00\uc18d\ud654\ud560 \uac83\uc73c\ub85c \uae30\ub300\ub429\ub2c8\ub2e4. SAW \uac00\uc2a4 \uc13c\uc11c\uc758 \uc774\ud574\ub294 \uc774 \uc911\uc694\ud55c \uae30\uc220\uc5d0 \ub300\ud55c \uc811\uadfc\uc131\uc744 \ub192\uc774\uace0, \uc0c8\ub85c\uc6b4 \uc751\uc6a9 \ubd84\uc57c \uac1c\ubc1c\uc5d0 \uae30\uc5ec\ud560 \uc218 \uc788\ub294 \ubc11\uac70\ub984\uc774 \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<p>\ub9c8\uc9c0\ub9c9\uc73c\ub85c SAW \uac00\uc2a4 \uc13c\uc11c\uc758 \uc6d0\ub9ac\uc640 \uae30\ub2a5\uc744 \uc774\ud574\ud558\ub294 \uac83\uc740 \ubbf8\ub798 \uc9c0\ud5a5\uc801\uc778 \uae30\uc220 \ubc1c\uc804\uc5d0 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud560 \uac83\uc774\uba70, \uc6b0\ub9ac\uc758 \uc0b6\uc744 \ub354 \uc548\uc804\ud558\uace0, \uac74\uac15\ud558\uba70, \ud3b8\ub9ac\ud558\uac8c \ub9cc\ub4dc\ub294 \ub370 \uae30\uc5ec\ud558\uac8c \ub420 \uac83\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uae30\uc220\uc774 \ub354\uc6b1 \uc9c4\ubcf4\ud558\uace0 \ub300\uc911\ud654\ub418\uc5b4 \uc77c\uc0c1 \uc0dd\ud65c\uacfc \uc0b0\uc5c5 \ud604\uc7a5\uc5d0\uc11c \ud070 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