Mandarin:
冷加工

Explanation in English Language (EN):
Plastic deformation of a metal at room temperature to increase strength through strain hardening.

Explanation in Mandarin (ZH):
在室温下对金属进行塑性变形，通过加工硬化提高其强度。

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International Phonetic Alphabet (IPA)
- Definition: A standardized system of symbols used to represent the sounds of spoken language.
- Purpose: Helps linguists, language learners, and educators accurately describe pronunciation across languages.
- Example: The word “hello” in British English is transcribed as /həˈləʊ/ in IPA.