機器
activity
architecture
building
cherry
civil
concrete
construction
crane
danger
dangerous
elevator
equipment
high
hoist
house
hydraulic
industrial
industry
job
ladder
lift
lifter
light
metal
outdoor
picker
pillar
platform
pole
progress
raise
reaching
repair
repairman
risk
safety
scissor
site
sky
steel
street
stretch
tall
tower
town
truck
vehicle
work
worker