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edu-chem-video

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Use when asked to make an explainer / walkthrough video (讲解视频、解题视频、例题精讲、微课) for a chemistry problem (化学题: 氧化还原配平 双线桥 电子守恒, 物质的量计算, 化学平衡 三段式 平衡常数 转化率 反应速率, 离子反应, 电化学, 溶液 滴定, 工业流程), from a problem screenshot or text, with Chinese voice-over (GLM-TTS / 智谱 TTS), bilingual zh+en subtitles and chalkboard-style canvas animation built around the chemical equation — delivered as a browser preview (index.html) first, MP4 export only if the user wants it.

skills/edu-chem-video/SKILL.md

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Source commit 805fdc5dd6bdf942290a7791924bf0ee08f26632

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Network or broad shell
Last checked
Nov 9, 2026

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Repository last updated
Oct 23, 2026
License
Apache-2.0

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# 化学题讲解视频 (edu-chem-video)

把一道化学题做成 16:9、1920×1080、带中文配音 + 中英双语字幕 + **黑板粉笔风格**动画的讲解视频（先给浏览器预览，用户要时再导出 MP4）。流水线与 edu-math-video / edu-physics-video 相同（配音、字幕、检查、渲染），区别在**解题方法**和**画面**：
- 解题：化学题的主线是"**守恒 + 以物质的量为中心**"：写对并配平方程式（电子守恒 → 原子守恒 → 电荷守恒）→ 找关系（系数比、守恒、关系式）→ 以 n 为中心计算 / 三段式 → 守恒复查。
- 画面：墨绿黑板 + 粉笔线；**顶部常驻方程式条**，下面左边演示、右边石板。化合价在数轴上升降、电子一组组长到相等、系数从电子行飞进方程式、原子计数条打 ✓、双线桥上电子流动、分子盒按系数比反应、三段式逐行填写。和数学（米色笔记本）、物理（深蓝蓝图）一眼能分开。

```
script.json ──build_audio.py──► build/timeline.json + build/mix.wav + ../<name>.srt
     (旁白)     (GLM-TTS + 合成音乐)          │
anim.js + chem.js + engine.js ◄───────────────┘ (按旁白时间点驱动动画)
     ├──open index.html ──► 浏览器直接播放（预览）
     └──node render.mjs video──► ../<name>.mp4（用户要时才导出）
```
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