Closeup of teacher and student looking at boiler controls
Contributor: auremar
ID : 132867682
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Keywords
boiler, control, man, industry, equipment, men at work, occupation, manual, engineer, heating, hand, cable, electronic, electrician, energy, expertise, caucasian, technology, ignition, spark, adjustment, maintenance, plumber, technician, apprentice, learn, precision, care, attentive, gasRelated items
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