英文關鍵字
assembly
big
car
cargo
closeup
construction
diesel
dirty
distribution
engine
engineer
engineering
equipment
factory
fix
gantry
gloves
hands
hard
heavy
height
hole
huge
indoor
industrial
industry
job
labor
machine
machinery
manual
manufacture
manufacturing
moving
overhaul
overhead
people
plant
repair
safety
storage
technology
transportation
truck
uniform
weight
workers
workshop