A man is holding a tablet and looking at a graph
Schlüsselwörter
man,
holding,
tablet,
looking,
graph,
likely,
plumber,
technician,
monitoring,
flow,
pipe,
water,
engineer,
work,
maintenance,
technology,
system,
men at work,
equipment,
industrial,
service,
house,
boiler,
repairman,
home,
checking,
energy,
control,
construction,
hand,
job,
pump,
fix,
person,
inspector,
plumbing,
meter,
professional,
valva,
heater,
mechanic,
room,
pipeline,
gas,
occupation,
electrician,
repair,
electric
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