Jisho

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はっかてん 発火点
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Noun
1. point of ignition; flash point​
Wikipedia definition
2. Autoignition temperature​The autoignition temperature or kindling point of a substance is the lowest temperature at which it will spontaneously ignite in a normal atmosphere without an external source of ignition, such as a flame or spark. This temperature is required to supply the activation energy needed for combustion. The temperature at which a chemical will ignite decreases as the pressure increases or oxygen concentration increases. It is usually applied to a combustible fuel mixture.
Read “Autoignition temperature” on English Wikipedia
Read “発火点” on Japanese Wikipedia
Read “Autoignition temperature” on DBpedia

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