Hot blast

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preheating of air blown into a blast furnace
time of discovery or invention
Wikipedia
Wikidata

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galaxy
time of discovery or invention
galaxy
time of discovery or invention
galaxy
time of discovery or invention
galaxy
time of discovery or invention
spiral galaxy in the constellation Virgo
time of discovery or invention
galaxy
time of discovery or invention
galaxy
time of discovery or invention
galaxy
time of discovery or invention
galaxy
time of discovery or invention
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