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heat exchanger

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Suppressed wall challenge (me)

tonimark 3 comments

Catalytic Converter

tonimark 2 comments

lithium electric stuff

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coal power plant

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coal power plant revamp

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merry christmas

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coca cola factory

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tiny reactor

tonimark 1 comments

Electronic Bomb by technolgycenter

tonimark 1 comments

working fluorescent lamp (BROKEN)

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infared radiation vs ambient temp

tonimark 1 comments