{"id":1533,"date":"2026-03-23T04:33:27","date_gmt":"2026-03-23T04:33:27","guid":{"rendered":"https:\/\/www.ez-knowledge.com\/ja\/refactoring-monolithic-schemas-entity-relationship-modeling\/"},"modified":"2026-03-23T04:33:27","modified_gmt":"2026-03-23T04:33:27","slug":"refactoring-monolithic-schemas-entity-relationship-modeling","status":"publish","type":"post","link":"https:\/\/www.ez-knowledge.com\/ja\/refactoring-monolithic-schemas-entity-relationship-modeling\/","title":{"rendered":"\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u30e2\u30c7\u30ea\u30f3\u30b0\u3092\u7528\u3044\u305f\u30e2\u30ce\u30ea\u30b7\u30c3\u30af\u30b9\u30ad\u30fc\u30de\u306e\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0"},"content":{"rendered":"
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\"Infographic<\/figure>\n<\/div>\n

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    \n
  • \u30b9\u30d1\u30b2\u30c3\u30c6\u30a3\u95a2\u4fc2\uff1a<\/strong>\u5916\u90e8\u30ad\u30fc\u304c\u95a2\u4fc2\u306e\u306a\u3044\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7d50\u3073\u3064\u3051\u3001\u5faa\u74b0\u4f9d\u5b58\u3092\u751f\u3058\u3055\u305b\u308b\u3002<\/li>\n
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  • \u5bc6\u7d50\u5408\uff1a<\/strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b8\u30c3\u30af\u3092\u5206\u96e2\u3067\u304d\u306a\u3044\u306e\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u304c\u305d\u308c\u3092\u5f37\u5236\u3057\u3066\u3044\u308b\u305f\u3081\u3067\u3042\u308b\u3002<\/li>\n
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    \u3053\u308c\u3089\u306e\u75c7\u72b6\u3092\u8a8d\u8b58\u3059\u308b\u3053\u3068\u306f\u3001\u662f\u6b63\u3078\u306e\u7b2c\u4e00\u6b69\u3067\u3042\u308b\u3002\u76ee\u7684\u306f\u5358\u306b\u30c6\u30fc\u30d6\u30eb\u3092\u518d\u7de8\u6210\u3059\u308b\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u30d3\u30b8\u30cd\u30b9\u306e\u8ad6\u7406\u7684\u9818\u57df\u3068\u4e00\u81f4\u3055\u305b\u308b\u3053\u3068\u3067\u3042\u308b\u3002<\/p>\n

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    ERM\u306e\u6838\u5fc3\u7684\u306a\u69cb\u6210\u8981\u7d20<\/h3>\n
      \n
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        \n
      • \u65e2\u5b58\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u30ea\u30b9\u30c8\u30a2\u30c3\u30d7:<\/strong>\u30b7\u30b9\u30c6\u30e0\u5185\u306b\u3042\u308b\u3059\u3079\u3066\u306e\u30c6\u30fc\u30d6\u30eb\u3001\u30ab\u30e9\u30e0\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3001\u5236\u7d04\u3092\u6587\u66f8\u5316\u3059\u308b\u3002<\/li>\n
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        \u3053\u306e\u8a55\u4fa1\u306b\u3088\u308a\u57fa\u6e96\u304c\u4f5c\u6210\u3055\u308c\u308b\u3002\u3053\u308c\u304c\u306a\u3044\u3068\u3001\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306b\u3088\u3063\u3066\u5f8c\u3067\u8ffd\u8de1\u304c\u56f0\u96e3\u306a\u5fae\u7d30\u306a\u30d0\u30b0\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n

        \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306e\u30d7\u30ed\u30bb\u30b9\uff1a\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7 \ud83d\udd04<\/h2>\n

        \u30e2\u30ce\u30ea\u30b7\u30c3\u30af\u306a\u30b9\u30ad\u30fc\u30de\u3092\u30e2\u30b8\u30e5\u30fc\u30eb\u69cb\u9020\u306b\u5909\u63db\u3059\u308b\u306b\u306f\u3001\u4f53\u7cfb\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002\u4ee5\u4e0b\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u30e2\u30c7\u30ea\u30f3\u30b0\u3092\u7528\u3044\u305f\u30b9\u30ad\u30fc\u30de\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306e\u6a19\u6e96\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u793a\u3057\u3066\u3044\u308b\u3002<\/p>\n

        1. \u30c9\u30e1\u30a4\u30f3\u99c6\u52d5\u8a2d\u8a08\uff08DDD\uff09\u306e\u6574\u5408<\/h3>\n

        \u307e\u305a\u3001\u30d3\u30b8\u30cd\u30b9\u30c9\u30e1\u30a4\u30f3\u306b\u57fa\u3065\u3044\u3066\u30c6\u30fc\u30d6\u30eb\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3059\u308b\u3002\u3053\u308c\u306f\u3057\u3070\u3057\u3070\u300c\u30d0\u30a6\u30f3\u30c7\u30c3\u30c9\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u300d\u3068\u547c\u3070\u308c\u308b\u3002\u6a5f\u80fd\u5225\uff08\u305f\u3068\u3048\u3070\u30ec\u30dd\u30fc\u30c8\u7528\u306e\u3059\u3079\u3066\u306e\u30c6\u30fc\u30d6\u30eb\uff09\u306b\u30c6\u30fc\u30d6\u30eb\u3092\u6574\u7406\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u6a5f\u80fd\u5225\uff08\u305f\u3068\u3048\u3070\u8acb\u6c42\u7528\u306e\u30c6\u30fc\u30d6\u30eb\u3001\u8a8d\u8a3c\u7528\u306e\u30c6\u30fc\u30d6\u30eb\uff09\u306b\u6574\u7406\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u95a2\u4fc2\u306e\u306a\u3044\u90e8\u5206\u9593\u306e\u7d50\u5408\u5ea6\u304c\u4f4e\u4e0b\u3059\u308b\u3002<\/p>\n

        2. \u6b63\u898f\u5316<\/h3>\n

        \u6b63\u898f\u5316\u306f\u30c7\u30fc\u30bf\u306e\u91cd\u8907\u3092\u6e1b\u3089\u3057\u3001\u6574\u5408\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u306f\u3001\u5927\u304d\u306a\u30c6\u30fc\u30d6\u30eb\u3092\u3088\u308a\u5c0f\u3055\u306a\u3001\u8ad6\u7406\u7684\u306b\u95a2\u9023\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u306b\u5206\u5272\u3059\u308b\u3002<\/p>\n

          \n
        • \u7b2c\u4e00\u6b63\u898f\u5f62\uff081NF\uff09:<\/strong>\u539f\u5b50\u5024\u3092\u78ba\u4fdd\u3059\u308b\u3002\u5404\u30ab\u30e9\u30e0\u306b\u306f\u5358\u4e00\u306e\u5024\u306e\u307f\u3092\u542b\u3081\u308b\u3002<\/li>\n
        • \u7b2c\u4e8c\u6b63\u898f\u5f62\uff082NF\uff09:<\/strong>\u90e8\u5206\u7684\u4f9d\u5b58\u95a2\u4fc2\u3092\u9664\u53bb\u3059\u308b\u3002\u3059\u3079\u3066\u306e\u975e\u30ad\u30fc\u5c5e\u6027\u306f\u3001\u5b8c\u5168\u306a\u4e3b\u30ad\u30fc\u306b\u4f9d\u5b58\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n
        • \u7b2c\u4e09\u6b63\u898f\u5f62\uff083NF\uff09:<\/strong>\u63a8\u79fb\u7684\u4f9d\u5b58\u95a2\u4fc2\u3092\u9664\u53bb\u3059\u308b\u3002\u975e\u30ad\u30fc\u5c5e\u6027\u306f\u3001\u4ed6\u306e\u975e\u30ad\u30fc\u5c5e\u6027\u306b\u4f9d\u5b58\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002<\/li>\n<\/ul>\n

          3NF\u306f\u6a19\u6e96\u7684\u306a\u76ee\u6a19\u3067\u3059\u304c\u3001\u4e00\u90e8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8981\u4ef6\u306b\u3088\u308a\u3001\u5236\u5fa1\u3055\u308c\u305f\u975e\u6b63\u898f\u5316\u3092\u5fc5\u8981\u3068\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u6c7a\u5b9a\u306f\u6587\u66f8\u5316\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n

          3. \u65b0\u3057\u3044\u95a2\u4fc2\u306e\u5b9a\u7fa9<\/h3>\n

          \u30c6\u30fc\u30d6\u30eb\u3092\u5206\u5272\u3057\u305f\u5f8c\u306f\u3001\u95a2\u4fc2\u3092\u518d\u69cb\u7bc9\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306b\u306f\u3001\u591a\u5bfe\u591a\u306e\u95a2\u4fc2\u306b\u5bfe\u3057\u3066\u65b0\u3057\u3044\u5916\u90e8\u30ad\u30fc\u3068\u7d50\u5408\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u3082\u3057\u88fd\u54c1<\/em>\u304c\u8907\u6570\u306e\u30ab\u30c6\u30b4\u30ea<\/em>\u306b\u5c5e\u3059\u308b\u5834\u5408\u3001\u305d\u308c\u3089\u3092\u30ea\u30f3\u30af\u3059\u308b\u305f\u3081\u306b\u7d50\u5408\u30c6\u30fc\u30d6\u30eb\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n

          4. \u30c7\u30fc\u30bf\u79fb\u884c\u6226\u7565<\/h3>\n

          \u53e4\u3044\u30b9\u30ad\u30fc\u30de\u304b\u3089\u65b0\u3057\u3044\u30b9\u30ad\u30fc\u30de\u3078\u30c7\u30fc\u30bf\u3092\u79fb\u884c\u3059\u308b\u3053\u3068\u306f\u3001\u6700\u3082\u30ea\u30b9\u30af\u306e\u9ad8\u3044\u30d5\u30a7\u30fc\u30ba\u3067\u3059\u3002\u6226\u7565\u306b\u306f\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059\uff1a<\/p>\n

            \n
          • \u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u79fb\u884c\uff1a<\/strong>\u66f8\u304d\u8fbc\u307f\u3092\u505c\u6b62\u3057\u3001\u30c7\u30fc\u30bf\u3092\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u3001\u5909\u63db\u3057\u3066\u65b0\u3057\u3044\u30b9\u30ad\u30fc\u30de\u306b\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u3002\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002<\/li>\n
          • \u30c7\u30e5\u30a2\u30eb\u66f8\u304d\u8fbc\u307f\uff1a<\/strong>\u79fb\u884c\u671f\u9593\u4e2d\u306b\u3001\u53e4\u3044\u30b9\u30ad\u30fc\u30de\u3068\u65b0\u3057\u3044\u30b9\u30ad\u30fc\u30de\u306e\u4e21\u65b9\u306b\u540c\u6642\u306b\u66f8\u304d\u8fbc\u3080\u3002<\/li>\n
          • \u30ed\u30b0\u30d9\u30fc\u30b9\u306e\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff1a<\/strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30ed\u30b0\u304b\u3089\u5909\u66f4\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u3001\u65b0\u3057\u3044\u69cb\u9020\u306b\u9069\u7528\u3059\u308b\u3002<\/li>\n<\/ul>\n

            \u907f\u3051\u308b\u3079\u304d\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74 \ud83d\uded1<\/h2>\n

            \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306f\u8907\u96d1\u6027\u3092\u3082\u305f\u3089\u3059\u3002\u7279\u5b9a\u306e\u30df\u30b9\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u6574\u5408\u6027\u3092\u640d\u306a\u3046\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n

              \n
            • \u30c7\u30fc\u30bf\u578b\u3092\u7121\u8996\u3059\u308b\uff1a<\/strong>\u5217\u3092\u6574\u6570<\/em>\u304b\u3089\u6587\u5b57\u5217<\/em>\u4e0b\u6d41\u306e\u8ad6\u7406\u3092\u691c\u8a3c\u305b\u305a\u306b\u5909\u66f4\u3059\u308b\u3068\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u304c\u7834\u640d\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/li>\n
            • \u904e\u5270\u306a\u6b63\u898f\u5316\uff1a<\/strong>\u3042\u307e\u308a\u306b\u3082\u591a\u304f\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u3068\u3001\u904e\u5270\u306a\u7d50\u5408\u304c\u767a\u751f\u3057\u3001\u30af\u30a8\u30ea\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4f4e\u4e0b\u3059\u308b\u3002<\/li>\n
            • \u5236\u7d04\u306e\u55aa\u5931\uff1a<\/strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306b\u5236\u7d04\u3092\u79fb\u52d5\u3059\u308b\u3068\u3001\u8907\u6570\u306e\u30b5\u30fc\u30d3\u30b9\u304c\u540c\u3058\u30c7\u30fc\u30bf\u306b\u66f8\u304d\u8fbc\u3080\u5834\u5408\u3001\u30c7\u30fc\u30bf\u306e\u7834\u640d\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/li>\n
            • \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u7121\u8996\uff1a<\/strong>\u65b0\u3057\u3044\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u65b0\u3057\u3044\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002\u65b0\u3057\u3044\u5916\u90e8\u30ad\u30fc\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8a2d\u5b9a\u3057\u306a\u3044\u3068\u3001\u7d50\u5408\u64cd\u4f5c\u304c\u9045\u304f\u306a\u308b\u3002<\/li>\n<\/ul>\n

              \u691c\u8a3c\u3068\u30c6\u30b9\u30c8\u6226\u7565 \u2705<\/h2>\n

              \u30b9\u30ad\u30fc\u30de\u3092\u518d\u8a2d\u8a08\u3057\u305f\u5f8c\u3001\u691c\u8a3c\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u81ea\u52d5\u30c6\u30b9\u30c8\u306b\u3088\u308a\u3001\u65b0\u3057\u3044\u5883\u754c\u3092\u8d8a\u3048\u3066\u30c7\u30fc\u30bf\u6574\u5408\u6027\u304c\u7dad\u6301\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

                \n
              • \u30c7\u30fc\u30bf\u6574\u5408\u6027\u306e\u78ba\u8a8d\uff1a<\/strong>\u3059\u3079\u3066\u306e\u65b0\u3057\u3044\u95a2\u4fc2\u306b\u304a\u3044\u3066\u53c2\u7167\u6574\u5408\u6027\u304c\u4fdd\u305f\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u3001\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/li>\n
              • \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u6e2c\u5b9a\uff1a<\/strong>\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u524d\u5f8c\u3067\u306e\u30af\u30a8\u30ea\u5b9f\u884c\u6642\u9593\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002<\/li>\n
              • \u884c\u6570\u306e\u691c\u8a3c\uff1a<\/strong>\u30ec\u30b3\u30fc\u30c9\u306e\u5408\u8a08\u6570\u304c\u4e00\u5b9a\u306e\u307e\u307e\uff08\u79fb\u884c\u4e2d\u306b\u4f5c\u6210\u3055\u308c\u305f\u91cd\u8907\u3092\u9664\u304f\uff09\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n
              • \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30ec\u30b0\u30ec\u30c3\u30b7\u30e7\u30f3\u30c6\u30b9\u30c8\uff1a<\/strong>\u65b0\u3057\u3044\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u306b\u5bfe\u3057\u3066\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30c6\u30b9\u30c8\u306e\u30d5\u30eb\u30b9\u30a4\u30fc\u30c8\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n

                \u6bd4\u8f03\uff1a\u30e2\u30ce\u30ea\u30b7\u30c3\u30af\u69cb\u9020 vs. \u30e2\u30b8\u30e5\u30fc\u30eb\u5316\u30b9\u30ad\u30fc\u30de<\/h2>\n

                \u4ee5\u4e0b\u306e\u8868\u306f\u3001\u5f93\u6765\u306e\u30e2\u30ce\u30ea\u30b7\u30c3\u30af\u69cb\u9020\u3068\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u3055\u308c\u305f\u30e2\u30b8\u30e5\u30fc\u30eb\u5316\u30a2\u30d7\u30ed\u30fc\u30c1\u3068\u306e\u9055\u3044\u3092\u6982\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n\n\n
                \u6a5f\u80fd<\/th>\n\u30e2\u30ce\u30ea\u30b7\u30c3\u30af\u30b9\u30ad\u30fc\u30de<\/th>\n\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u6e08\u307f\u30b9\u30ad\u30fc\u30de<\/th>\n<\/tr>\n<\/thead>\n
                \u30c6\u30fc\u30d6\u30eb\u69cb\u9020<\/strong><\/td>\n\u5927\u898f\u6a21\u3067\u76ee\u7684\u304c\u6df7\u5728\u3057\u305f\u30c6\u30fc\u30d6\u30eb<\/td>\n\u5c02\u9580\u5316\u3055\u308c\u305f\u3001\u30c9\u30e1\u30a4\u30f3\u56fa\u6709\u306e\u30c6\u30fc\u30d6\u30eb<\/td>\n<\/tr>\n
                \u30c7\u30fc\u30bf\u306e\u91cd\u8907<\/strong><\/td>\n\u9ad8\u3044<\/td>\n\u6b63\u898f\u5316\u306b\u3088\u308a\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b<\/td>\n<\/tr>\n
                \u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3<\/strong><\/td>\n\u30b7\u30e3\u30fc\u30c7\u30a3\u30f3\u30b0\u304c\u96e3\u3057\u3044<\/td>\n\u30c9\u30e1\u30a4\u30f3\u3054\u3068\u306b\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u5206\u5272\u3057\u3084\u3059\u3044<\/td>\n<\/tr>\n
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