We need to write an article without the title, as per instruction: "直接输出正文，不要标题". So output just the body. Must be 1500+ characters, with 6-8 paragraphs, each 150-250 words. So total characters? They said "字数要求：必须写满1500字，不能少于1050字!" So must be at least 1500 Chinese characters (not words). They also say each paragraph 150-250 words? They said "每段150-250字". Probably characters? In Chinese, "字" usually means characters. So each paragraph 150-250 Chinese characters. 6-8 paragraphs. So total characters between 900 and 2000. Must be at least 1500 characters, so need roughly 6-7 paragraphs of ~250 characters each, totaling ~1500+. We'll produce 7 paragraphs of around 220-230 characters each, making total ~1600 characters. Must avoid AI watermark, use human style, no titles. Must be natural, no stiff. Must not use banned transition words. Must not use "、". Also avoid "让我们...", "。"

Count characters: Let's count manually.

街(1)道2的3指4示5牌6、7旅8游9手10册11上12的13标14记15、16总17会18出19现20一21串22串23数24字25，26它们27像28是29地30图31的32暗33语34，35提36醒37我38们39关40注41某42个43位44置45、46某47段48路49程50或51某52块53区54域55。 That's 55 characters? Actually I counted up to 55? Let's recount: I think I missed some characters. Let's count properly: The string is:

"街道的指示牌、旅游手册上的标记，总会出现一串串数字，它们像是地图的暗语，提醒我们关注某个位置、某段路程或某块区域。"

Let's count characters including punctuation? Usually punctuation counts as characters too. Let's count roughly:

街1 道2 的3 指4 示5 牌6 、7 旅8 游9 手10 本11 上12 的13 标14 记15 ，16 总17 会18 出19 现20 一21 串22 串23 数24 字25 ，26 她27 们28 像29 是30 地31 图32 的33 暗34 语35 ，36 提37 醒38 我39 们40 关41 注42 某43 个44 位45 置46 、47 某48 段49 路50 程51 或52 某53 块54 区55 域56 。57

So about 57 characters. That's too short; need 150-250 characters per paragraph. So we need longer paragraphs.

Thus we need to expand each paragraph to around 200 characters.

We'll need to write longer paragraphs.

Let's aim for about 200-230 characters each.

Paragraph 1: We'll expand.

Paragraph 1 draft (approx 210 characters):

"走在城市的街头，常会注意到地图上那些细小的标记，尤其是标注了数字的地方。它们不只是简单的标号，而是承载着不同的信息：有的指示站点的编号，有的标示坐标的精度，甚至透露出历史事件的时间戳。每一次抬头望向纸面或屏幕，都会看到这些数字以各种方式悄悄嵌入地图的纹理里。"

Now count characters roughly. Let's count quickly: This is likely around 150-180 characters. Need 150-250, okay maybe around 180. Might need a bit longer.

Add more detail: "有时会看到几乎看不见的注释，像是‘100米’的比例尺，或‘30°’的经度，它们在无声中告诉我们，地图不只是展示形状，更在用数字讲述故事。"

Let's rewrite paragraph 1 fully:

"走在城市的街头，常会注意到地图上那些细小的标记，尤其是标注了数字的地方。它们不只是简单的标号，而是承载着不同的信息：有的指示站点的编号，有的标示坐标的精度，甚至透露出历史事件的时间戳。每一次抬头望向纸面或屏幕，都会看到这些数字以各种方式悄悄嵌入地图的纹理里。有时会看到几乎看不见的注释，像是‘100米’的比例尺，或‘30°’的经度，它们在无声中告诉我们，地图不只是展示形状，更在用数字讲述故事。"

Now count characters roughly: Let's approximate. This seems maybe ~250 characters. Might be okay.

Paragraph 2: talk about scale bars and coordinate numbers.

"在阅读地图时，比例尺上的数字往往被忽略，但它是连接真实世界与图纸的关键桥梁。例如，1:25000的比例意味着每走一厘米，在地面上就对应250米的距离。坐标系统则更进一步，经度、纬度的数字精确到小数点后数位，能够把一个山谷、一条街道定位到毫米级。正是这些数字的精准，让我们在纸质或电子地图上轻松穿梭，找到想去的每一个角落。"

Count characters likely ~200-230.

Paragraph 3: talk about statistical annotation like population density, case counts.

"现代地图不再只关注几何形状，更常加入统计数据的标记。疾病的发感区域会以颜色块标注病例数，人口密度则通过数字密度的深浅表现。去年某地的疫情地图上，那些红色数字‘1243’正是当天新增病例的总量，配合地图的分区，让人们一眼看出危险的蔓延路径。类似的数字在环保报告里也出现，二氧化碳排放量、森林覆盖率等指标，都以数字的方式被刻在空间上，让抽象的数字变得可视化。"

Paragraph 4: historical markings, dates, codes.

"不少古老的地图上保留着年代的痕迹，数字往往是时间的证人。旧式的城市规划图里，标有‘1935年’的编号代表当时的规划局编号，而战争时期的军用地图则会标记‘1