Mandarin:
硬度测试

Explanation in English Language (EN):
A method of determining a material's resistance to deformation, often using techniques like Rockwell, Brinell, or Vickers.

Explanation in Mandarin (ZH):
测量材料抗变形能力的方法，常用洛氏、布氏或维氏等测试方法。

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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.