Metal strengthening
金属强化
Explanation (EN)
Techniques used to increase the strength of metals, including work hardening, alloying, grain refinement, and heat treatment.
Explanation (ZH)
提高金属强度的方法，包括加工硬化、合金化、晶粒细化和热处理等。
About the IPA
The International Phonetic Alphabet is a standardized system of symbols used to represent the sounds of spoken language.
It helps linguists, language learners, and educators accurately describe pronunciation across languages.
Example: the word "hello" in British English is transcribed as /həˈləʊ/ in IPA.