Welding transformer operation under load:
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Working machine engine
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Spectrograph
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Air compressor turn on, turn off
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Power station turbine
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Off, on, Forklift, standby
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Brewing unit, mill for grinding grain
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Lowers forks, Forklift raises
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Hydraulic down machine
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Crusher
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Print imprinted in cardboard, Notches
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Compressor industry
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Automatic telephone switch
★★★★★