Mandarin:
催化剂

Explanation in English Language (EN):
A substance that increases the rate of a chemical reaction without being consumed in the process. Catalysts work by providing an alternative 1 reaction pathway with lower activation energy. They are essential in many industrial polymerization processes to speed up reactions and improve efficiency.

Explanation in Mandarin (ZH):
一种物质，它可以提高化学反应的速度，而自身不会在过程中被消耗。催化剂通过提供具有较低活化能的替代反应途径来起作用。它们在许多工业聚合过程中至关重要，可以加速反应并提高效率。(yī zhǒng wù zhì, tā kě yǐ tí gāo huà xué fǎn yìng de sù dù, ér zì shēn bù huì zài guò chéng zhōng bèi xiāo hào. cuī huà jì tōng guò tí gōng jù yǒu jiào dī huó huà néng de tì dài fǎn yìng tú jìng lái qǐ zuò yòng. tā men zài xǔ duō gōng yè jù hé guò chéng zhōng zhì guān zhòng yào, kě yǐ jiā sù fǎn yìng bìng tí gāo xiào lǜ.)

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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.