機器
beam
building
capacity
carry
chain
construction
crane
device
electric
equipment
factory
frame
gantry
girder
hang
heavy
height
high
hoist
hook
indoor
industry
iron
lifting
load
manufacturing
metal
over
overhead
plant
rail
rope
sling
stable
steel
strong
structure
technology
tons
tool
transport
transportation
up
warehouse
weight
white
winch
wire
work