英文關鍵字
above
automatic
beam
begin
block
blue
burden
carry
construction
cover
crane
drag
equipment
factory
frame
gantry
girder
hall
hang
heave
heavy
height
high
hoist
hook
indoor
industry
kilogram
lift
lifting
load
manufacturing
over
overhead
pull
rope
steel
strength
strengthen
strong
tackle
tons
transport
transportation
traveling
unit
weight
wire
yellow