{"id":1484,"date":"2023-04-20T14:00:05","date_gmt":"2023-04-20T06:00:05","guid":{"rendered":"https:\/\/www.qualitester.com\/?post_type=product&#038;p=1484"},"modified":"2024-12-03T13:53:39","modified_gmt":"2024-12-03T05:53:39","slug":"inclined-coefficient-of-friction-tester-cof-03","status":"publish","type":"product","link":"https:\/\/www.qualitester.com\/ko\/%ec%a0%9c%ed%92%88\/inclined-coefficient-of-friction-tester-cof-03\/","title":{"rendered":"COF-03 \uacbd\uc0ac \ub9c8\ucc30 \uacc4\uc218 \ud14c\uc2a4\ud130"},"content":{"rendered":"<h2><strong>\uacbd\uc0ac \ub9c8\ucc30 \uacc4\uc218 \uc2dc\ud5d8\uae30 \uc18c\uac1c<\/strong><\/h2>\n<p>\uadf8\ub9cc\ud07c <strong>\uacbd\uc0ac \ub9c8\ucc30 \uacc4\uc218 \uc2dc\ud5d8\uae30<\/strong> \ub294 \ub2e4\uc591\ud55c \uc7ac\ub8cc\uc758 \uc815\uc801 \ub9c8\ucc30 \uacc4\uc218(COF)\ub97c \uce21\uc815\ud558\ub3c4\ub85d \uc124\uacc4\ub41c \uace0\uae09 \uc7a5\ube44\uc785\ub2c8\ub2e4. \uc774 \ud14c\uc2a4\ud130\ub294 \uac00\ubcc0 \uacbd\uc0ac\uba74\uacfc \uc2ac\ub77c\uc774\ub529 \ube14\ub85d\uc744 \uc0ac\uc6a9\ud558\uc5ec \uacbd\uc0ac\uac00 \uc810\ucc28 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \ud55c \ud14c\uc2a4\ud2b8 \ud45c\uba74\uc774 \ub2e4\ub978 \ud14c\uc2a4\ud2b8 \ud45c\uba74\uc5d0 \ub300\ud574 \ubbf8\ub044\ub7ec\uc9c0\uae30 \uc2dc\uc791\ud558\ub294 \uac01\ub3c4\ub97c \uacb0\uc815\ud569\ub2c8\ub2e4. \uc774 \uc7a5\uce58\ub294 \ud50c\ub77c\uc2a4\ud2f1 \ud544\ub984, \uace0\ubb34, \uc885\uc774, \ubcf4\ub4dc, \uc9c1\ubb3c, \ucf54\ud305, \ube0c\ub808\uc774\ud06c \ud328\ub4dc, \uc9c1\ubb3c \ub4f1 \ub2e4\uc591\ud55c \uc7ac\ub8cc\ub97c \ud14c\uc2a4\ud2b8\ud558\ub294 \ub370 \uc774\uc0c1\uc801\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc774 \ub2e4\ubaa9\uc801 \ud14c\uc2a4\ud130\ub294 \ud488\uc9c8, \uc548\uc804 \ubc0f \ucd5c\uc801\uc758 \uc131\ub2a5\uc744 \ubcf4\uc7a5\ud558\uae30 \uc704\ud574 \uc815\ud655\ud55c \ub9c8\ucc30 \uce21\uc815\uc774 \uc911\uc694\ud55c \ud3ec\uc7a5, \uc790\ub3d9\ucc28, \uc12c\uc720, \uc81c\uc57d \ubc0f \uc2dd\ud488 \ud3ec\uc7a5\uacfc \uac19\uc740 \uc0b0\uc5c5\uc5d0 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \ud544\ub984, \uc2dc\ud2b8 \ub610\ub294 \uc0b0\uc5c5 \uad6c\uc131 \uc694\uc18c\uc758 \ub9c8\ucc30\uc744 \uce21\uc815\ud574\uc57c \ud558\ub294 \uacbd\uc6b0 \uc774 \uc7a5\uce58\ub294 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uacb0\uacfc\ub97c \uc81c\uacf5\ud558\uc5ec \uc0ac\uc6a9\uc790\uac00 \uc7ac\ub8cc \ucde8\uae09, \ud3ec\uc7a5 \ub514\uc790\uc778 \ubc0f \uc81c\ud488 \uae30\ub2a5\uc744 \uac1c\uc120\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \uc90d\ub2c8\ub2e4.<\/p>\n<h2><strong>\uc791\ub3d9 \uc6d0\ub9ac<\/strong><\/h2>\n<p>\uadf8\ub9cc\ud07c <strong>\uacbd\uc0ac <a href=\"https:\/\/www.qualitester.com\/ko\/%ec%a0%9c%ed%92%88\/coefficient-of-friction-tester-cof-01\/\" target=\"_blank\" rel=\"noopener\">\ub9c8\ucc30\uacc4\uc218 \ud14c\uc2a4\ud130<\/a><\/strong> \ub294 \ud55c \uc7ac\ub8cc\uac00 \ub2e4\ub978 \uacbd\uc0ac\uc9c4 \ud45c\uba74\uc5d0\uc11c \ubbf8\ub044\ub7ec\uc9c0\uae30 \uc2dc\uc791\ud558\ub294 \uac01\ub3c4\ub97c \uacb0\uc815\ud558\uc5ec \uc815\uc801 COF\ub97c \uce21\uc815\ud569\ub2c8\ub2e4. \uacbd\uc0ac\uac00 \uc77c\uc815\ud55c \ube44\uc728\ub85c \uc11c\uc11c\ud788 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \ud14c\uc2a4\ud2b8 \ub300\uc0c1 \uc7ac\ub8cc\uc758 \ud45c\uba74\uc774 \ubbf8\ub044\ub7ec\uc9c0\uae30 \uc2dc\uc791\ud569\ub2c8\ub2e4. \uc774 \ud604\uc0c1\uc774 \ubc1c\uc0dd\ud558\ub294 \uac01\ub3c4\uac00 \uce21\uc815\ub418\uace0 \uc815\uc801 COF\ub294 \ud574\ub2f9 \uac01\ub3c4\uc758 \uc811\uc120\uacfc \uc218\uce58\uc801\uc73c\ub85c \ub3d9\uc77c\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc774 \ubc29\ubc95\uc740 \uc790\uc7ac \ucde8\uae09, \ud3ec\uc7a5, \uc870\ub9bd \ub4f1 \uc2e4\uc81c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \uc790\uc7ac\uc758 \uac70\ub3d9\uc744 \uc774\ud574\ud558\ub294 \ub370 \uc911\uc694\ud55c \uc815\ud655\ud55c \ub9c8\ucc30 \uac12\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub9c8\ucc30 <strong>\uc2ac\ub77c\uc774\ub4dc \uac01\ub3c4 \ud14c\uc2a4\ud130<\/strong> \uae30\ub2a5\uc744 \ud1b5\ud574 \ub2e4\uc591\ud55c \uc7ac\ub8cc\uc5d0 \ub300\ud574 \uc815\ud655\ud55c COF \ud310\ub3c5\uac12\uc744 \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2><strong>\uad00\ub828 \ud14c\uc2a4\ud2b8 \ud45c\uc900 \uac1c\uc694<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/www.astm.org\/d0202-17.html\" target=\"_blank\" rel=\"noopener nofollow\"><strong>ASTM D202<\/strong><\/a>: \uc774 \ud45c\uc900\uc740 \ud2b9\ud788 \ud544\ub984 \ubc0f \ud3ec\uc7a5\uc7ac\uc5d0 \ub300\ud55c \uc7ac\ub8cc\uc758 \uc815\uc801 COF\ub97c \uce21\uc815\ud558\uae30 \uc704\ud55c \uc9c0\uce68\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ud14c\uc2a4\ud130\uac00 \ub2e4\uc591\ud55c \uc7ac\ub8cc\uc5d0 \ub300\ud574 \ud544\uc694\ud55c \uc815\ud655\ub3c4\ub97c \ucda9\uc871\ud558\ub3c4\ub85d \ubcf4\uc7a5\ud558\uc5ec \uc81c\uc870\uc5c5\uccb4\uac00 \ud3ec\uc7a5 \ub514\uc790\uc778 \ubc0f \uc7ac\ub8cc \uc120\ud0dd\uc758 \ud575\uc2ec \uc694\uc18c\uc778 \uc7ac\ub8cc\uac00 \uc11c\ub85c \uc5bc\ub9c8\ub098 \uc27d\uac8c \ubbf8\ub044\ub7ec\uc9c0\ub294\uc9c0 \ud3c9\uac00\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/li>\n<li><a href=\"https:\/\/www.astm.org\/d4918-97r07.html\" target=\"_blank\" rel=\"noopener nofollow\"><strong>ASTM D4918<\/strong><\/a>: \uc885\uc774 \ubc0f \ubcf4\ub4dc \ud14c\uc2a4\ud2b8\ub97c \uc704\ud574 \ud2b9\ubcc4\ud788 \uace0\uc548\ub41c ASTM D4918\uc740 \uc885\uc774 \uc7ac\ub8cc \uac04\uc758 \uc815\uc801 COF\ub97c \uce21\uc815\ud558\ub294 \uc808\ucc28\ub97c \uac04\ub7b5\ud558\uac8c \uc124\uba85\ud569\ub2c8\ub2e4. \uc774 \ud45c\uc900\uc740 \ud3ec\uc7a5 \ubc0f \uc81c\uc9c0 \uc0dd\uc0b0\uacfc \uac19\uc740 \uc0b0\uc5c5\uc5d0 \uc911\uc694\ud558\uba70, \uc7ac\ub8cc\uac00 \uc6d0\ud65c\ud55c \ucde8\uae09 \ubc0f \ud3ec\uc7a5 \uc751\uc6a9 \ubd84\uc57c\uc5d0 \uc801\ud569\ud55c \ub9c8\ucc30 \ud2b9\uc131\uc744 \uac16\ub3c4\ub85d \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ud0c0\ud53c T815<\/strong>: \uc81c\uc9c0 \ubc0f \ud384\ud504 \uc0b0\uc5c5\uc5d0\uc11c \ub110\ub9ac \uc778\uc815\ubc1b\ub294 \uc774 \ud45c\uc900\uc740 \uc885\uc774, \ubcf4\ub4dc \ubc0f \uad00\ub828 \uc7ac\ub8cc\uc758 COF\ub97c \uce21\uc815\ud558\ub294 \ubc29\ubc95\uc744 \uc9c0\uc815\ud569\ub2c8\ub2e4. \uc81c\uc870\uc5c5\uccb4\ub294 \uc885\uc774 \uae30\ubc18 \uc81c\ud488\uc774 \ud3ec\uc7a5 \uae30\uacc4\uc758 \uc131\uacf5\uc801\uc778 \uc791\ub3d9\uacfc \ucd5c\uc885 \uc81c\ud488\uc758 \ud488\uc9c8\uc5d0 \ud544\uc218\uc801\uc778 \uc77c\uad00\ub41c \ub9c8\ucc30 \ud2b9\uc131\uc744 \uac16\ub3c4\ub85d \ubcf4\uc7a5\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc774\ub7ec\ud55c \ud45c\uc900\uc740 <strong>\uacbd\uc0ac \ub9c8\ucc30 \uacc4\uc218 \uc2dc\ud5d8\uae30<\/strong> \ub294 \uc5c5\uacc4 \uaddc\uc815 \ubc0f \uae00\ub85c\ubc8c \ubaa8\ubc94 \uc0ac\ub840\ub97c \uc900\uc218\ud558\uba70 \uc815\ud655\ud558\uace0 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uacb0\uacfc\ub97c \uc704\ud574 \ud544\uc694\ud55c \uae30\uc900\uc744 \ucda9\uc871\ud569\ub2c8\ub2e4.<\/p>\n<h2><strong>\uacbd\uc0ac \ub9c8\ucc30 \uacc4\uc218 \ud14c\uc2a4\ud130\uc758 \uc8fc\uc694 \ud2b9\uc9d5<\/strong><\/h2>\n<ul>\n<li><strong>PLC \uc81c\uc5b4 \ubc0f HMI \ud130\uce58\uc2a4\ud06c\ub9b0 \uc791\ub3d9<\/strong>: \uc774 \ud14c\uc2a4\ud130\ub294 \uc9c1\uad00\uc801\uc778 \uc778\uac04-\uae30\uacc4 \uc778\ud130\ud398\uc774\uc2a4(HMI)\uc640 \ud504\ub85c\uadf8\ub798\uba38\ube14 \ub85c\uc9c1 \ucee8\ud2b8\ub864\ub7ec(PLC)\ub97c \uac16\ucd94\uace0 \uc788\uc5b4 \ud14c\uc2a4\ud2b8\ub97c \uc27d\uac8c \uc81c\uc5b4\ud558\uace0 \ubaa8\ub2c8\ud130\ub9c1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud130\uce58\uc2a4\ud06c\ub9b0\uc744 \ud1b5\ud574 \uac04\ub2e8\ud55c \ud0d0\uc0c9\uacfc \uc870\uc791\uc774 \uac00\ub2a5\ud558\uc5ec \ud6a8\uc728\uc131\uacfc \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\ud14c\uc2a4\ud2b8 \uacb0\uacfc\uc758 \uc2e4\uc2dc\uac04 \ud45c\uc2dc<\/strong>: \uc774 \uc7a5\uce58\ub294 \ud14c\uc2a4\ud2b8 \uacb0\uacfc\uc758 \ucd5c\ub300, \ucd5c\uc18c, \ud3c9\uade0 \ubc0f \ud45c\uc900 \ud3b8\ucc28(SD)\ub97c \ud3ec\ud568\ud55c \uc2e4\uc2dc\uac04 \ub370\uc774\ud130\ub97c \ud654\uba74\uc5d0 \ud45c\uc2dc\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ud14c\uc2a4\ud2b8\uac00 \uc218\ud589\ub418\ub294 \ub3d9\uc548 \ud14c\uc2a4\ud2b8\uc758 \uc77c\uad00\uc131\uacfc \uc815\ud655\uc131\uc744 \ucd94\uc801\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\uad6d\uc81c \ud45c\uc900 \uc900\uc218<\/strong>: \uadf8 <strong>\uacbd\uc0ac \ub9c8\ucc30 \uacc4\uc218 \uc2dc\ud5d8\uae30<\/strong> \ub294 ASTM D202, ASTM D4918, TAPPI T815\ub97c \ube44\ub86f\ud55c \uc5ec\ub7ec \uad6d\uc81c \ud45c\uc900\uc744 \uc900\uc218\ud558\ub3c4\ub85d \uc81c\uc791\ub418\uc5b4 \ud14c\uc2a4\ud2b8 \uacb0\uacfc\uc758 \uc815\ud655\uc131\uacfc \uc2e0\ub8b0\uc131\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uac01\ub3c4 \ubc0f \uc815\uc801 COF \ubaa8\ub450 \uce21\uc815<\/strong>: \uc774 \ud14c\uc2a4\ud130\ub294 \ubbf8\ub044\ub7ec\uc9d0\uc774 \ubc1c\uc0dd\ud558\ub294 \uacbd\uc0ac\uac01\uc744 \uce21\uc815\ud558\ub294 \uac83 \uc678\uc5d0\ub3c4 \uc815\uc801 \ub9c8\ucc30 \uacc4\uc218\ub97c \uacc4\uc0b0\ud558\uc5ec \uc7ac\ub8cc \uc131\ub2a5\uc5d0 \ub300\ud55c \ud3ec\uad04\uc801\uc778 \uc2dc\uac01\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uac04\ud3b8\ud55c \ud14c\uc2a4\ud2b8 \uacb0\uacfc \ubb38\uc11c\ud654\ub97c \uc704\ud55c \ub9c8\uc774\ud06c\ub85c\ud504\ub9b0\ud2b8<\/strong>: \ud14c\uc2a4\ud130\ub294 \ud14c\uc2a4\ud2b8 \uacb0\uacfc\ub97c \uc778\uc1c4\ub41c \ud615\ud0dc\ub85c \uc0dd\uc131\ud560 \uc218 \uc788\uc5b4 \uc0ac\uc6a9\uc790\uac00 \uacb0\uacfc\ub97c \uc27d\uac8c \ubb38\uc11c\ud654\ud558\uace0 \uacf5\uc720\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uae30\ub2a5\uc740 \ud488\uc9c8 \uad00\ub9ac, \ubcf4\uace0 \ubc0f \uaddc\uc815 \uc900\uc218 \uac80\uc99d\uc5d0 \ud2b9\ud788 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>RS232 \ubc0f \ud504\ub85c\ud398\uc154\ub110 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc635\uc158<\/strong>: \uace0\uae09 \ub370\uc774\ud130 \ubd84\uc11d\uc774 \ud544\uc694\ud55c \uc0ac\uc6a9\uc790\ub97c \uc704\ud574 \ud14c\uc2a4\ud130\ub294 RS232 \uc5f0\uacb0 \ubc0f \uc804\ubb38 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uc635\uc158\uc744 \uc81c\uacf5\ud558\uc5ec \ub2e4\ub978 \uc2dc\uc2a4\ud15c\uacfc \uc6d0\ud65c\ud558\uac8c \ud1b5\ud569\ud560 \uc218 \uc788\uace0 \ub354\uc6b1 \uac15\ub825\ud55c \ub370\uc774\ud130 \uad00\ub9ac \ubc0f \ubcf4\uace0 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2><strong>\uae30\uc220 \uc0ac\uc591<\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"104\">\uac01\ub3c4 \ubc94\uc704<\/td>\n<td style=\"text-align: center;\" width=\"328\">0\u00b0 ~ 60\u00b0<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"104\">\uc815\ud655\uc131<\/td>\n<td style=\"text-align: center;\" width=\"328\">0.01\u00b0<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"104\">\ub1cc\uc878\uc911<\/td>\n<td style=\"text-align: center;\" width=\"328\">0.1\u00b0\/s \uff5e 10.0\u00b0\/s<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"104\">\uc370\ub9e4<\/td>\n<td style=\"text-align: center;\" width=\"328\">200g, 235g \ub610\ub294 1300g(\ud558\ub098 \ub610\ub294 \uae30\ud0c0 \uc120\ud0dd)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong>\uacbd\uc0ac \ub9c8\ucc30 \uacc4\uc218 \ud14c\uc2a4\ud130\uc758 \uc751\uc6a9 \ubd84\uc57c<\/strong><\/h2>\n<p>\uadf8\ub9cc\ud07c <strong>\uacbd\uc0ac \ub9c8\ucc30 \uacc4\uc218 \uc2dc\ud5d8\uae30<\/strong> \ub294 \ub2e4\uc591\ud55c \uc0b0\uc5c5 \ubd84\uc57c\uc5d0\uc11c \uc7ac\ub8cc\uc758 \ub9c8\ucc30 \ud2b9\uc131\uc744 \ud14c\uc2a4\ud2b8\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uba87 \uac00\uc9c0 \uc8fc\uc694 \uc751\uc6a9 \ubd84\uc57c\uc785\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\ud3ec\uc7a5<\/strong>: \ud544\ub984, \uc885\uc774, \ud310\uc9c0 \ubc0f \uae30\ud0c0 \ud3ec\uc7a5 \uc7ac\ub8cc\uc758 \ub9c8\ucc30 \ud2b9\uc131\uc744 \ud3c9\uac00\ud558\uc5ec \ud3ec\uc7a5 \ub77c\uc778\uc5d0\uc11c \uc6d0\ud65c\ud55c \uc791\ub3d9\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc790\ub3d9\ucc28<\/strong>: \ube0c\ub808\uc774\ud06c \ud328\ub4dc \ubc0f \uae30\ud0c0 \uad6c\uc131\ud488\uc758 \uc131\ub2a5, \ub0b4\uad6c\uc131 \ubc0f \uc548\uc804\uc131\uc744 \ud3c9\uac00\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc9c1\ubb3c<\/strong>: \uc9c1\ubb3c, \uc9c1\uc870 \uc18c\uc7ac \ubc0f \ucf54\ud305\uc758 \ub9c8\ucc30 \ud2b9\uc131\uc744 \ud14c\uc2a4\ud2b8\ud558\uc5ec \uc9c1\ubb3c \ucde8\uae09 \ubc0f \uac00\uacf5\uc5d0 \uc911\uc694\ud55c \ub9c8\ucc30 \ud2b9\uc131\uc744 \ud655\uc778\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc758\ub8cc\uae30\uae30<\/strong>: \uc758\ub8cc\uc6a9 \ud3ec\uc7a5\uc7ac\uac00 \ud3ec\uc7a5 \ubc0f \uc720\ud1b5 \uc911 \ubb38\uc81c\ub97c \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \ud544\uc694\ud55c COF \uc694\uac74\uc744 \ucda9\uc871\ud558\ub294\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc81c\uc57d\ud488<\/strong>: \uc758\uc57d\ud488 \ud3ec\uc7a5\uc7ac\uc758 \ub9c8\ucc30 \ud2b9\uc131\uc744 \uce21\uc815\ud558\uc5ec \uc801\uc808\ud55c \ucde8\uae09 \ubc0f \ubcf4\uad00\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>\uadf8\ub9cc\ud07c <strong>\uacbd\uc0ac \ub9c8\ucc30 \uacc4\uc218 \uc2dc\ud5d8\uae30<\/strong> \ub294 \ub2e4\uc591\ud55c \uc7ac\ub8cc\uc758 \uc815\uc801 \ub9c8\ucc30 \uacc4\uc218(COF)\ub97c \uce21\uc815\ud558\ub3c4\ub85d \uc124\uacc4\ub41c \uace0\uae09 \uc7a5\ube44\uc785\ub2c8\ub2e4. \uc774 \ud14c\uc2a4\ud130\ub294 \uac00\ubcc0 \uacbd\uc0ac\uba74\uacfc \uc2ac\ub77c\uc774\ub529 \ube14\ub85d\uc744 \uc0ac\uc6a9\ud558\uc5ec \uacbd\uc0ac\uac00 \uc810\ucc28 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \ud55c \ud14c\uc2a4\ud2b8 \ud45c\uba74\uc774 \ub2e4\ub978 \ud14c\uc2a4\ud2b8 \ud45c\uba74\uc5d0 \ub300\ud574 \ubbf8\ub044\ub7ec\uc9c0\uae30 \uc2dc\uc791\ud558\ub294 \uac01\ub3c4\ub97c \uacb0\uc815\ud569\ub2c8\ub2e4. \uc774 \uc7a5\uce58\ub294 \ud50c\ub77c\uc2a4\ud2f1 \ud544\ub984, \uace0\ubb34, \uc885\uc774, \ubcf4\ub4dc, \uc9c1\ubb3c, \ucf54\ud305, \ube0c\ub808\uc774\ud06c \ud328\ub4dc, \uc9c1\ubb3c \ub4f1 \ub2e4\uc591\ud55c \uc7ac\ub8cc\ub97c \ud14c\uc2a4\ud2b8\ud558\ub294 \ub370 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