tyaaron ka mahatva samjhate hue bahan ko Patra ............ in hindi pls tell it's urgent.....
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A Neutral Oxy Acetylene Flame is used for Welding, Brazing and Silver Soldering most metals and is therefore the most common type of flame to use. A Neutral Flame is also used for Oxy Acetylene Cutting.
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the process in which heat moves through a gas or a liquid as the hotter part rises and the cooler, heavier part sinks
गैस या द्रव में ताप फैलने की प्रक्रिया जिसमें गरम भाग ऊपर उ
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