Mandarin:
表面取向度

Explanation in English Language (EN):
A measure of how aligned polymer chains or crystallites are at the surface, influencing mechanical properties and surface behavior.

Explanation in Mandarin (ZH):
衡量聚合物链或晶体在材料表面排列一致性的程度，影响其机械性能和表面特性。

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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.