機器
10
big
block
chain
closeup
construction
crane
duty
electric
engineer
engineering
equipment
facility
factory
hang
head
heavy
hoist
hook
industrial
industry
instrument
large
lever
lift
lifting
load
machinery
maintenance
manufacture
manufacturing
mechanical
metalwork
old
plant
power
ratchet
rise
safety
service
site
steel
system
tons
tool
up
workplace
workshop