Mandarin:
丁基橡胶

Explanation in English Language (EN):
A synthetic rubber made from isobutylene and a small amount of isoprene, known for excellent air impermeability and resistance to weathering.

Explanation in Mandarin (ZH):
由异丁烯和少量异戊二烯合成的一种合成橡胶，具有优异的气密性和耐候性。

Audio:

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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.