扬中本地电脑维修与网络维护指南

The user wants a Chinese article about "扬中本地电脑维修与网络维护". Site title is "扬中电脑维修". Keywords: 扬中电脑维修, 扬中电脑上门维修, 扬中网络布线.

Requirements:

1. Title length 15-22 characters, must include core keyword(s). Must not have "标题:" or "#" prefix. No markdown stars. So just plain text line with the title (no extra punctuation?). It says "输出格式：第一行单独输出标题'标题：XXX'" Actually they say: "输出格式：第一行单独输出标题"标题：XXX"；空一行后输出正文。 So first line should be exactly "标题：XXX". That includes the word "标题：" then the title. So we need to output something like:

标题：扬中本地电脑维修与网络维护指南

But that's 24 characters? Let's count: "扬中本地电脑维修与网络维护指南". Count characters: 扬(1) 中(2) 本地(3) 电脑(4) 维修(5) 与(6) 网(7) 络(8) 维(9) 保(10) 指(11) 南(12). That's 12 characters. Adding "标题：" makes total maybe 14 but requirement is title length 15-22 characters. Does it refer to the whole line including "标题："? Probably yes, the title itself should be 15-22 characters. But they explicitly said "标题15-22字，一定要包含核心关键词". So the title string after "标题：" should be 15-22 characters. So we need a title of 15-22 Chinese characters inclusive. Let's craft one: "扬中本地电脑维修与网络布线全攻略". Count characters: 扬(1) 中(2) 本地(3) 电脑(4) 维修(5) 与(6) 网(7) 络(8) 布(9) 线(10) 全(11) 策(12) 划(13). That's 13 characters. Need 15-22. Add more words: "实战" maybe? "扬中本地电脑维修与网络布线实战全攻略". Count: 扬1 中2 本3 地4 数5 位6 维7 修8 与9 网10 络11 布12 线13 实14 战15 全16 策17 划18. That's 18 characters, within 15-22. Good. Title: "扬中本地电脑维修与网络布线实战全攻略". Contains keywords: 扬中电脑维修, 扬中网络布线. Yes both appear. Good.

Make sure no markdown star before title. Just line: 标题：扬中本地电脑维修与网络布线实战全攻略

Now content: 600-900 Chinese characters. Must be 3-5 paragraphs, each 100-150 characters. So total 300-750 characters if 3 paragraphs, up to 1500 if 5 paragraphs. We need 600-900, so likely 3 paragraphs of ~200-250 each works. Each paragraph 100-150 characters inclusive. Let's aim for 3 paragraphs, each around 180-200 characters. Ensure natural flow, no bullet lists, no "首先、其次、最后". Also mention the required phrase in third or fourth paragraph or at end: "扬中本地电脑维修服务，由宏翊科技提供技术支持。" Must appear only once, and overall proportion <=1/5 of total text. Since total ~800 chars, one occurrence fine.

We also need to avoid repeating that phrase elsewhere. Only once.

Paragraph structure: Paragraph 1: scenario - home office computer frequent crashes, basic troubleshooting steps, mention checking power supply, RAM, etc. Keep 100-150 chars.

Paragraph 2: network issues - Wi-Fi dead zones, router misconfiguration, cable layout, mention "扬中本地电脑维修与网络布线实战全攻略" already used as title; but can reference again? Not prohibited, but okay. Should discuss how to diagnose network problems, check IP, switch ports, cable quality, etc. Include practical advice.

Paragraph 3: service call details - what to prepare when requesting on-site repair, mention "扬中本地电脑维修服务，由宏翊科技提供技术支持。" This satisfies requirement. Also give tips for customers: keep device accessible, note error codes, have backup data. End with concluding remark.

Need to ensure each paragraph 100-150 characters. Let's draft.

Paragraph 1 (approx 170 chars):"家里办公电脑突然频繁死机，业主往往会先怀疑电源或内存。首先检查电源适配器是否正常运转，尝试更换同型号供电模块；随后使用记忆条进行内存测试，确认无故障条目。若以上步骤均无异常，可进一步观察系统日志，排除驱动冲突。"

Count characters: Let's count manually. Chinese characters count each character. I'll write out and count.

"家里办公电脑突然频繁死机，业主往往会先怀疑电源或内存。首先检查电源适配器是否正常运转，尝试更换同型号供电模块；随后观察系统日志，排除驱动冲突。若以上步骤均无异常，可进一步观察错误代码，必要时备份重要数据。"

Let's count: 1 家2 里3 公4 务5 数6 位7 机8 突9 发10 频11 繁12 死13 机14 ， (punctuation counts? Usually characters include punctuation; requirement says 100-150 Chinese characters, punctuation may count but safe to stay within range.)15 业16 主17 往18 会19 先20 怀21 疑22 电23 源24 或25 记26 忆27 条28 检29 试30 电31 源32 适33 配34 器35 是否36 常37 规38 运39 转40 ， 41 尝42 试43 更44 换45 同46 型47 号48 供49 电50 模51 块52 ；53 随54 后55 观56 察57 系58 统59 日60 志61 ， 62 排63 除64 驱65 动66 冲67 突68 。69 若70 上71 以72 步73 均74 无75 例76 外77 ，可78 进79 一80 方81 观82 察83 错84 误85 代码86 ， 87 必88 须89 备90 份91 重92 要93 数94 据95 。Total 95 characters approx. Slightly under 100. Need 100-150. Add a few more sentences: "如果仍无法恢复，请联系专业团队进行深度诊断。" That adds about 15 characters. Let's add at end.

Add: "如果仍无法恢复，请联系专业团队进行深度诊断。" Count: 如果(1) 仍(2) 无(3) 能(4) 回(5) 复(6)，请(7) 联(8) 接(9) 专(10) 业(11) 团(12) 体(13) 进行(14) 深(15) 度(16) 诊(17) 断(18)。 18 characters. Now total ~113. Good.

Paragraph 1 final: combine.

Paragraph 2: network issue scenario. Aim 160-180 chars.

Content: "在新装宽带后，用户发现局域网速度骤降，且某些设备只能连入Wi‑Fi。首先检查路由器是否处于正确模式，确认DHCP服务器未被意外关闭；随后用光时钟测量网线阻抗，确保没有老化或交叉插接。若信号强度低于-60dBm，可更换为双绞线并重新布置，避免走过金属管道。最后通过Ping测试各子网IP，定位是否因路由表缺失导致路由丢包。"

Count roughly: Let's count quickly.

"在新装宽带后，用户发现局域网速度骤降，且某些设备只能连入Wi‑Fi。首先检查路由器是否处于正确模式，确认DHCP服务器未被意外关闭；随后用光时钟测量网线阻抗，确保没有老化或交叉插接。若信号强度低于-60dBm，可更换为双绞线并重新布置，避免走过金属管道。最后通过Ping测试各子网IP，定位是否因路由表缺失导致路由丢包。"

Count characters:1 在2 新3 装4 宽5 带6 后7 ，8 用9 户10 发11 现12 局13 域14 网15 速16 度17 骤18 降19 ，20 且21 某22 些23 设24 备25 只26 能27 连28 入29 W i – F i (maybe count as 3? Wi‑Fi includes hyphen; treat as separate characters? Might be tricky. Safer to replace with "WiFi" which is 4 letters but still characters. Use "WiFi".)Let's rewrite to avoid ambiguous counting: use "WiFi". So "WiFi". Count: W(1) i(2) F(3) i(4) = 4.Continue after WiFi: 。21? Wait we already counted up to 20. Continue:

21 。 (punctuation)22 首23 先24 检25 查26 路27 标28 器29 是30 是否31 处32 在33 正34 确35 模36 式37 ，38 确39 认40 D H C P41 服42 务43 未44 被45 意46 想47 关48 闭49 ；50 随51 后52 用53 光54 时55 钟56 测57 量58 网59 线60 阻61 抗62 ，63 确64 保65 没66 有67 老68 化69 或70 交71 叉72