forked from bai/curriculum-project-hub
sjfhsjfh
c73a2c903f
Real-content fixture for the end-to-end pipeline. TH-141 (39 parts: 22 segment, 15 lemma, 2 example) migrated from the prototype's typst `#let parts` manifest to ADR-0008: declarative manifest.toml (project+info+ordered parts+targets) + per-element element.toml (kind + scalars; examples carry `source`). Content .typ files copied byte-identical (no math corruption); per-element main.typ + meta.toml dropped (wiring is now generated). Part order matches source exactly; 5 lemmas have no proof.typ (optional); no cross-file imports / paralearn refs / figs. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
10 lines
408 B
Typst
10 lines
408 B
Typst
沿固体表面把接触线挪动 $dif x$，单位接触线长度上：固液界面增 $dif x$，固气界面减 $dif x$，液气界面长度按 $cos theta$ 投影增 $dif x cos theta$。总界面能的变化
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$ dif F = gamma_(S L) dif x - gamma_(S G) dif x + gamma_(L G) cos theta thin dif x . $
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平衡条件 $dif F = 0$ 给出
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$ gamma_(S G) = gamma_(S L) + gamma_(L G) cos theta , $
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即 @Young方程。
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