boiler
boilerhouse
business
caucasian
checking
concept
coronavirus
covid19
engineer
equality
equipment
factory
gas
health
health care
heating
helmet
holding
indoor
industry
infection
inspection
inspector
maintenance
manufacturing
mask
new normal
pandemic
person
pipe
pipeline
pipes
prevention
protection
qr code
safety
service
system
technician
technology
thermostat
tube
vaccination
valve
vessel
virus
woman
work
worker
young
定額
Portrait of a young engineer in uniform, protective mask and helmet with a folder in her hand. In the background, boiler equipment and pipes. Industrial production.の素材 [FY310178776705]
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