Jisho

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けいじょうおくごうきん 形状記憶合金
Noun
1. shape memory alloy
Wikipedia definition
2. Shape-memory alloyA shape-memory alloy (SMA, smart metal, memory metal, memory alloy, muscle wire, smart alloy) is an alloy that "remembers" its original, cold-forged shape: returning the pre-deformed shape by heating. This material is a lightweight, solid-state alternative to conventional actuators such as hydraulic, pneumatic, and motor-based systems. Shape-memory alloys have applications in industries including medical and aerospace.
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Read “形状記憶合金” on Japanese Wikipedia
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