英文關鍵字
above
automatic
bar
beam
begin
block
blue
building
carry
coil
construction
cover
crane
drag
equipment
factory
frame
gantry
girder
hall
hang
heavy
height
high
hoist
hook
indoor
industrial
industry
iron
joist
kilogram
lathe
lift
load
machine
machinery
male
man
manufacturing
material
metal
movement
over
overhead
pattern
people
pipe
plate
pull