Jisho

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Noun
1. heavy oil; fuel oil
Wikipedia definition
2. Fuel oilFuel oil is a fraction obtained from petroleum distillation, either as a distillate or a residue. Broadly speaking, fuel oil is any liquid petroleum product that is burned in a furnace or boiler for the generation of heat or used in an engine for the generation of power, except oils having a flash point of approximately 40 °C (104 °F) and oils burned in cotton or wool-wick burners. In this sense, diesel is a type of fuel oil.
Read “Fuel oil” on English Wikipedia
Read “重油” on Japanese Wikipedia
Read “Fuel oil” on DBpedia

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