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DEVELOPMENT MATERIAL AND DEVELOPMENT ELEMENT OF HEAT DEVELOPMENT
DEVELOPMENT MATERIAL AND DEVELOPMENT ELEMENT OF HEAT DEVELOPMENT
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机译:热发展的发展材料和发展要素
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摘要
A thermal-sensitive color developing material containing metal particles and a matrix substance where the size of the metal particles irreversibly increase at room temperature due to cohesion, and a thermal-sensitive element using the thermal-sensitive color developing material are disclosed. The thermal-sensitive color developing material irreversibly develops a color at a temperature of room temperature or higher.
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