機器
aisle
beam
blue
bottom
bridge
business
carriage
cathead
construction
crane
cranebeam
detail
electrical
engineering
equipment
factory
frame crane
framework
hoist
hook
indoors
industrial
industry
landing
line
loading
machinery
manufacture
manufacturing
metal
metalwork
metalworking
monorail
overhead
overhead runway beam
overheadtrack hoist
plant
runway beam
sling
steel
storage
suspended
tearing
technology
transportation
traveling
trestle
warehouse
workshop
yellow