食材当主角：蛋 / 淀粉 / 油脂——屏幕写机制

「食材当主角：蛋 / 淀粉 / 油脂——屏幕写机制」（烹饪科学（不出镜））字幕级无露脸大纲：钩子、结构时间轴、可核对事实与原创化提醒；参考 2 条上传者字幕。

角度

基于人工字幕定时节拍的选题大纲：食材当主角：蛋 / 淀粉 / 油脂——屏幕写机制
人工字幕参考：dXCrTJLk_kY、HGiYMH8AUwU
只复用定时节拍与可引用事实——旁白须原创；时间戳上屏

钩子

0:00–0:40: 用人工字幕里的真实节拍冷开场，承诺为「食材当主角：蛋 / 淀粉 / 油脂——屏幕写机制」给出可执行的无露脸大纲：时间轴 + 带时间戳事实 + 原创化提醒。旁白须原创，禁止照抄参考片脚本。 dXCrTJLk_kY@0:02 HGiYMH8AUwU@0:00

结构时间轴展开收起

HGiYMH8AUwU 0:00–1:01 — Welcome to Mythical Kitchen, where we all gotta eat and we all gotta learn from the past.
HGiYMH8AUwU 1:02–2:02 — I actually agree with that too, and we are going to get into that. Do you have any guesses on what scientific discoveries we're gonna go through today?
HGiYMH8AUwU 2:04–3:04 — And so I'm not giving you a hard time about this. Um, umami is, is so weird because I can't really call it to mind.
HGiYMH8AUwU 3:08–4:09 — And he starts prodding around the soup and he eats the kbu kelp. And so being a chemist, he boils 90 pounds of Kbu kelp.
HGiYMH8AUwU 4:10–5:11 — And it's like protons specifically sort of falling across a channel into a cell. So there's like a higher amount outside than inside.
HGiYMH8AUwU 5:13–6:15 — That is literally formations of glutamic acid by breaking down protein.
dXCrTJLk_kY 0:02–1:07 — MICHAEL BRENNER: This week, we're going to study the physics of baking. Baking has arisen already on several occasions in this course.
dXCrTJLk_kY 1:09–2:14 — And by putting them together in your own mind, they will hopefully help you make sense of recipes.
dXCrTJLk_kY 2:18–3:22 — Now, why is it important that the butter is at room temperature?
dXCrTJLk_kY 3:26–4:18 — So if you imagine what you want for the ideal birthday cake, you want something that's nice and light, and fluffy, and tender, and velvety.

字幕可核对事实展开收起

字幕依据：Welcome to Mythical Kitchen, where we all gotta eat and we all gotta learn from the past. Because today we are going on a journey of scientific discovery through the ages, and what better person to go on that journey with me than the host of SciShow and Ask Hank Anything. HGiYMH8AUwU@0:00
字幕依据：I actually agree with that too, and we are going to get into that. Do you have any guesses on what scientific discoveries we're gonna go through today? Are we gonna talk about, are we gonna talk about how we spray? Spray flavors on things like how do you get, how do you get Dorito flavor to stick to Doritos? HGiYMH8AUwU@1:02
字幕依据：And he starts prodding around the soup and he eats the kbu kelp. And so being a chemist, he boils 90 pounds of Kbu kelp. And then he adds enzymes to it to basically try and isolate different properties. And he's left with pure glutamic acid that he tastes and goes. HGiYMH8AUwU@3:08
字幕依据：And it's like protons specifically sort of falling across a channel into a cell. So there's like a higher amount outside than inside. And if there's a higher amount outside, then they fall inside because it's falling down a hill basically. HGiYMH8AUwU@4:10
字幕依据：That is literally formations of glutamic acid by breaking down protein. Because humans developed by, we develop big old human brains by eating broken down protein. And it's interesting 'cause can't really. Like if you just have a pure whey protein in a glass, you have to have a little bit of something happening to it. HGiYMH8AUwU@5:13
字幕依据：MICHAEL BRENNER: This week, we're going to study the physics of baking. Baking has arisen already on several occasions in this course. But so far, we haven't been able to actually go into the physics of baking, that is, how do recipes for baked goods work and produce the delicious outcomes that we all so much enjoy? dXCrTJLk_kY@0:02
字幕依据：And by putting them together in your own mind, they will hopefully help you make sense of recipes. And to help us with this, we're very fortunate to be able to visit the kitchen of Joanne Chang of Flour Bakery. JOANNE CHANG: Hi, I'm Joanne Chang of Flour Bakery. dXCrTJLk_kY@1:09
字幕依据：Now, why is it important that the butter is at room temperature? Because what we're going to be doing is we're going to be adding millions and millions of minuscule microscopic air pockets into the butter, and we're going to do that with our sugar. dXCrTJLk_kY@2:18

节拍 / 大纲

钩子（0:00–0:40）：冷开场点题「食材当主角：蛋 / 淀粉 / 油脂——屏幕写机制」——点题讲清「食材当主角：蛋 / 淀粉 / 油」本拍情节（旁白原创，勿照抄参考片）。
要点 1：点题讲清「食材当主角：蛋 / 淀粉 / 油」本拍情节（HGiYMH8AUwU@0:00）。
要点 2：演示展开「食材当主角：蛋 / 淀粉 / 油」本拍情节（HGiYMH8AUwU@1:02）。
要点 3：对照说明「食材当主角：蛋 / 淀粉 / 油」本拍情节，点出 90（HGiYMH8AUwU@3:08）。
要点 4：落地操作「食材当主角：蛋 / 淀粉 / 油」本拍情节（HGiYMH8AUwU@4:10）。
要点 5：收束提醒「食材当主角：蛋 / 淀粉 / 油」本拍情节（HGiYMH8AUwU@5:13）。
收尾：三条定时引用回顾卡 + 来源上屏。旁白须原创。

转场

冷开场后打标题卡点明「食材当主角：蛋 / 淀粉 / 油脂——屏幕写机制」的承诺。
切换参考片时用下三分显示 video id + 时间戳，方便核对。
收尾前定格回顾卡，放入事实列表里 3 个可核对点。

收尾 / CTA

用回顾卡结束「食材当主角：蛋 / 淀粉 / 油脂——屏幕写机制」，列出 3 条定时引用；评论区征集下一子角度。旁白须原创——只复用节拍，不复用原片台词。

参考片对照

多参考时按「对题片段密度」分配时长，默认不要均分。
参考 dXCrTJLk_kY：保留定时节拍，去掉广告/片尾求订阅。
参考 HGiYMH8AUwU：保留定时节拍，去掉广告/片尾求订阅。

原创化建议

TTS 旁白原创；画面下三分标注片名与时间戳作研究引用。
不要粘贴主持人梗、赞助口播或片尾固定 CTA。
优先使用带时间戳的具体事实，避免空泛的「专家说」。
时间轴/事实里没有的主张：删掉，或明确标成你的假说。

参照片

The physics of baking dXCrTJLk_kY
Hank Green Eats 100 Years Of Food Science HGiYMH8AUwU

方法

yt-dlp VTT 人工字幕（上传者提供，非自动/ASR）→ 全文按 60–90 秒切段（超长视频关键词定位）→ 选题级编辑综合。仅结构参考；旁白须原创。