[action-translation] resync: exchangeable.md

[mmcky]

Forward Resync: exchangeable.md

Source: QuantEcon/lecture-python.myst — lectures/exchangeable.md
Source commit: a137f5d
This PR resyncs the translation to match the current source document.

Reason: The translation is largely faithful, with the font-configuration import block being i18n-only. However, there is a substantive content change: the source's note block about DeFinetti's related representation (marked with {note}) is converted into a plain paragraph merged with the mixing-parameter explanation, and importantly the source sentence 'Please watch for what can be learned from the past and when' section content appears reordered/altered slightly (an extra sentence '但是什么信息？如何了解？' appears before the Exchangeability section that isn't clearly in source at that location, but overall this is minor restructuring). More importantly, no major sections are missing and no large new sections are added, so this is CONTENT_CHANGES level (minor rewording/restructuring of the note and connecting sentences) rather than additions or purely stylistic differences.

Changes

Whole-file resync applied. The entire document was resynced in a single pass.

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Created by action-translation forward resync

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[Copilot]

Pull request overview

This PR forward-resyncs the Chinese translation of exchangeable.md against the upstream source commit, and records the sync state for the translation workflow.

Changes:

• Resynced the full lectures/exchangeable.md content to match the current upstream structure, including restoring the DeFinetti note block.
• Added translation frontmatter (title + heading mapping) and made a handful of formatting/kernel-label adjustments in equations and code-cell directives.
• Added translation sync state metadata under .translate/state/.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
lectures/exchangeable.md	Full-document resync plus added translation frontmatter and minor formatting/kernel-label updates.
.translate/state/exchangeable.md.yml	Records upstream source SHA and resync metadata for the translation pipeline.

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✅ Translation Quality Review

Verdict: PASS | Model: claude-sonnet-5 | Date: 2026-07-19

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📝 Translation Quality

Criterion	Score
Accuracy	9/10
Fluency	9/10
Terminology	9/10
Formatting	9/10
Overall	9/10

Summary: This is a high-quality, comprehensive translation that accurately captures the technical and conceptual content of the source document. Mathematical notation, MyST directives, and code blocks are all correctly preserved. Terminology is consistent with the glossary and reads naturally in academic Chinese. Minor stylistic notes include the addition of font-configuration code in the Python import block (likely intentional for CJK rendering) and slight softening of emphasis/italics in a few places, but these do not detract from the overall excellent fidelity and fluency of the translation. Faithful and precise rendering of dense mathematical and statistical terminology (e.g., 可交换性, 独立同分布, 似然比, 先验/后验概率) consistent with glossary conventions All LaTeX equations, MyST directives, and code blocks are preserved intact with correct syntax Natural academic register maintained throughout, especially in explaining nuanced concepts like exchangeability vs. independence Consistent translation of repeated key terms across the entire document (e.g., 主观概率, 边际密度, 条件密度) Code comments were appropriately translated into Chinese while preserving code functionality and structure

Suggestions:

• Code cell imports section: The translation adds extra font-configuration code (matplotlib font manager, figsize settings) not present in the English source's import block. This is likely an intentional localization addition for CJK rendering, but it deviates from a strict resync and should be verified against project conventions for whether such additions belong in a 'resync' PR.
• 'A Setting in Which Past Observations Are Informative' section: 'ignorance' translated as '不确定性' (uncertainty) rather than a more direct rendering like '无知' or '未知状态' — acceptable and arguably more natural in Chinese, but slightly softens the epistemic tone of 'ignorance' used twice in the source.
• Bayes' Law section: 'Another way to say use Bayes' Law is to say from a (subjective) joint distribution, compute an appropriate conditional distribution' is translated accurately, but the italicized emphasis markers (use Bayes' Law, how) are inconsistently preserved as italics in Chinese (e.g., '如何问题' retains emphasis, but '使用贝叶斯定律' emphasis is preserved as plain text without asterisks) — check the pdf/markdown rendering consistency for italics near '关于什么' and '如何'.
• 'IID Means Past Observations...' section: sentence 'If a sequence is random variables is IID' (typo in source: 'is' should be 'of') is translated correctly in meaning despite the source typo, which is good, but worth noting no attempt was made to flag/fix the source typo.

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🔍 Diff Quality

Check	Status
Scope Correct	✅
Position Correct	✅
Structure Preserved	✅
Heading-map Correct	✅
Overall	10/10

Summary: The resync correctly updates lectures/exchangeable.md, preserving document structure, fixing formatting inconsistencies (note block, code fences), and adding an accurate translation heading-map including nested Appendix subsections.

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This review was generated automatically by action-translation review mode.