Mandarin:
硼硅

Explanation in English Language (EN):
A type of glass with silica and boron trioxide as main constituents, known for low thermal expansion and high resistance to thermal shock.

Explanation in Mandarin (ZH):
一种以二氧化硅和三氧化二硼为主要成分的玻璃，具有低热膨胀率和优异的耐热冲击性能。

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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.