英文關鍵字
action
billet
building
casement
concrete
construction
crane
dirty
donstroy
engineering
equipment
execute
fast
glass
group
hard
heavy
industrial
industry
install
job
labor
light
load
losiniy
machine
machinery
make
many
mechanism
metal
move
operation
orange
outdoor
pane
panel
produce
ready
sandwich
site
steel
strength
sunny
team
technology
uniform
view
window
work