機器
accuracy
business
checking
city
construction
contractor
control
electricity
engine
engineer
equipment
facility
factory
fix
hydraulic
indoors
industrial
industry
innovation
inspector
light rail train
line
maintenance
manager
mechanic
metal
metro
part of a series
plant
platform
railway
repair
safety
speed
station
steel
subway
subway car
technician
technology
traffic
train
transit
transport
transportation
vehicle
warehouse
worker
定額
Close up professional engineer or technician workers man and woman concentrate to look the information in drawing paper and they stay in front of electric train in factory workplace.の素材 [FY310207005840]
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