{"type":"rich","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/y/yuinomi/20260531/20260531101245.png","blog_title":"Instant Engineering","blog_url":"https://instant.engineer/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finstant.engineer%2Fentry%2Fflatness\" title=\"\u5e73\u9762\u5ea6\u3068\u306f\uff1f\u8a18\u53f7\u30fb\u6e2c\u5b9a\u65b9\u6cd5\u3068\u5e7e\u4f55\u516c\u5dee\u3092\u89e3\u8aac - Instant Engineering\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"\u5e73\u9762\u5ea6\u3068\u306f\uff1f\u8a18\u53f7\u30fb\u6e2c\u5b9a\u65b9\u6cd5\u3068\u5e7e\u4f55\u516c\u5dee\u3092\u89e3\u8aac","provider_url":"https://hatena.blog","url":"https://instant.engineer/entry/flatness","width":"100%","author_url":"https://blog.hatena.ne.jp/yuinomi/","provider_name":"Hatena Blog","categories":["\u6a5f\u68b0\u5de5\u5b66","\u6a5f\u68b0\u5de5\u5b66-\u30d7\u30ed\u30bb\u30b9"],"height":"190","published":"2026-05-31 10:21:37","version":"1.0","author_name":"yuinomi","description":"\u56f3\u9762\u306b\u63cf\u304b\u308c\u305f\u5e73\u9762\u304c\u3001\u88fd\u54c1\u306b\u306a\u3063\u305f\u3068\u304d\u672c\u5f53\u306b\u300c\u5e73\u3089\u300d\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u2015\u2015\u8a2d\u8a08\u8005\u306a\u3089\u4e00\u5ea6\u306f\u60a9\u3093\u3060\u7d4c\u9a13\u304c\u3042\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002 \u91d1\u578b\u306e\u5408\u308f\u305b\u9762\u3084\u30b7\u30fc\u30eb\u9762\u3001\u30d5\u30e9\u30f3\u30b8\u9762\u306a\u3069\u3001\u307b\u3093\u306e\u308f\u305a\u304b\u306a\u51f9\u51f8\u304c\u6f0f\u308c\u3084\u504f\u6469\u8017\u3068\u3044\u3063\u305f\u6df1\u523b\u306a\u30c8\u30e9\u30d6\u30eb\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002 \u3053\u3046\u3057\u305f\u300c\u9762\u306e\u5e73\u3089\u3055\u300d\u3092\u6570\u5024\u3067\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u7528\u3044\u3089\u308c\u308b\u306e\u304c\u3001JIS B 0021 \u306b\u898f\u5b9a\u3055\u308c\u305f\u5e7e\u4f55\u516c\u5dee\u306e\u3072\u3068\u3064\u3001\u5e73\u9762\u5ea6\u3067\u3059\u3002 \u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u300c\u8a18\u53f7\u306e\u610f\u5473\u304c\u3088\u304f\u5206\u304b\u3089\u306a\u3044\u300d\u300c\u5e73\u884c\u5ea6\u3068\u306e\u9055\u3044\u304c\u66d6\u6627\u300d\u3068\u3044\u3063\u305f\u58f0\u306f\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002 \u672c\u8a18\u4e8b\u3067\u306f\u3001\u5e73\u9762\u5ea6\u306e\u5b9a\u7fa9\u30fb\u8a18\u53f7\u306e\u8aad\u307f\u65b9\u304b\u3089\u3001JIS B 0419 \u306e\u666e\u901a\u5e7e\u4f55\u516c\u5dee\u3001\u6e2c\u5b9a\u65b9\u6cd5\u3001\u52a0\u5de5\u6280\u8853\u3001\u30c8\u30e9\u30d6\u30eb\u4e8b\u4f8b\u307e\u3067\u4f53\u7cfb\u7684\u306b\u89e3\u8aac\u2026"}