🌐 [translation-sync] [two_auctions.md] Update np.random → Generator API

[mmcky]

Automated Translation Sync

This PR contains automated translations from QuantEcon/lecture-python.myst.

Source PR

#960 - [two_auctions.md] Update np.random → Generator API

Files Updated

• ✏️ lectures/two_auctions.md
• ✏️ .translate/state/two_auctions.md.yml

Details

• Source Language: en
• Target Language: zh-cn
• Model: claude-sonnet-5

---

This PR was created automatically by the translation action.

[netlify]

✅ Deploy Preview for astonishing-narwhal-a8fc64 ready!

Name	Link
🔨 Latest commit	e7c4f0b
🔍 Latest deploy log	https://app.netlify.com/projects/astonishing-narwhal-a8fc64/deploys/6a6912b0a825cb00081cb486
😎 Deploy Preview	https://deploy-preview-211--astonishing-narwhal-a8fc64.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[github-actions]

✅ Translation Quality Review

Verdict: PASS | Model: claude-sonnet-5 | Date: 2026-07-28
Routing: editor — 1 minor finding(s) in gating categories (accuracy/terminology/syntax/diff-check/other); terminology 8 below floor 9

---

📝 Translation Quality

Criterion	Score
Accuracy	9/10
Fluency	9/10
Terminology	8/10
Formatting	9/10
Overall	8.8/10

Summary: 翻译整体质量较高，准确传达了原文关于一价和二价拍卖的经济学概念、数学推导和Python代码逻辑，术语使用基本规范且与术语表保持一致。主要问题集中在代码注释的双语重复处理略显冗余，以及部分标题中'一价/二价'与'第一价格/第二价格'表述交替使用可能造成轻微的术语不统一，但均属于次要问题，不影响读者理解核心内容。 数学公式、LaTeX 标记和代码块结构完整保留，未破坏 MyST 语法 专业术语（如贝叶斯纳什均衡、收益等价定理、密封投标拍卖）翻译准确且大体符合术语表 表格内容翻译清晰，保留了原文的逻辑结构和对比关系 标点符号基本遵循全角中文标点规范

Suggestions:

• [minor · terminology] lectures/two_auctions.md — Python code section, code comments: 许多原本为纯代码注释（英文）的行在翻译文档中被追加了中文翻译，形成'英文注释 # 中文翻译'的重复格式（例如 '# Bidders' values are sorted in ascending order... idx = np.argsort(v, axis=0) # 在每次拍卖中，竞买人的估值按升序排列。'）。这种双重注释在代码单元格中显得冗余，虽不影响运行，但不符合简洁的代码注释翻译惯例，且部分位置英文注释与中文翻译顺序颠倒，读起来略显混乱。 → 统一将代码注释翻译为中文并替换原文，而不是保留英文原文再附加中文翻译，例如直接使用 '# 在每次拍卖中，竞买人的估值按升序排列。' 替代原英文注释。
• [minor · fluency] lectures/two_auctions.md — ## Python code, imports: 新增的字体设置代码块（FONTPATH、mpl.font_manager等）没有任何注释说明其用途，虽然这是常见的中文字体渲染配置，但与英文原文相比属于新增内容，建议至少保持代码注释风格一致（若其他类似代码块有中文注释，此处也应考虑添加简要说明，或保持无注释的一致性）。 → 可保持原样，因为这是技术性配置且不影响文本理解；若要与其他部分风格统一，可添加简短注释如 '# 设置中文字体以正确显示中文标签'。
• [nit · fluency] lectures/two_auctions.md — ## Second price sealed bid auction: 标题翻译为'第二价格密封拍卖'，但正文中提到'第二价格密封拍卖'与前文'二价密封拍卖(SPSB)'的表述在中文里略有不一致（一价/二价 vs 第一价格/第二价格），虽然两者均可理解，但混用可能造成术语不统一的印象。 → 统一使用'一价密封拍卖'和'二价密封拍卖'或者统一使用'第一价格密封拍卖'和'第二价格密封拍卖'，避免两种表述交替出现。

---

🔍 Diff Quality

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

Summary: The RNG API migration (np.random.seed/np.random.X to rng = np.random.default_rng()/rng.X) and jupytext_version bump were correctly and completely mirrored in the target document at matching positions, with no unrelated changes.

---

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

[Copilot]

Pull request overview

This automated translation-sync PR updates the Chinese two_auctions lecture to match upstream changes that migrate randomness from the legacy np.random.* global API to NumPy’s Generator API (default_rng), keeping randomness deterministic via a fixed seed.

Changes:

• Replaced np.random.seed(...) + np.random.<dist>(...) usage with rng = np.random.default_rng(...) + rng.<dist>(...) in the lecture code cells.
• Updated Jupytext metadata version in the lecture frontmatter.
• Updated translation sync state metadata (source-sha, synced-at, mode, tool version).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
lectures/two_auctions.md	Switches random draws to a seeded Generator (rng) to align with upstream np.random → Generator migration.
.translate/state/two_auctions.md.yml	Updates translation-sync bookkeeping to the new upstream source SHA and sync timestamp.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[github-actions]

🚀 Deployed on https://6a691c6493f499a4d6c8d63b--astonishing-narwhal-a8fc64.netlify.app