英文關鍵字
assembly
brigadier
business
coal
construction
conveyor
diesel
driver
dump
electro
engine
engineering
enterprise
equipment
factory
garage
grinding
hangar
haul
heavy
huge
industrial
industry
interior
iron
large
line
machine
machinery
machines
manufactory
mining
product
production
quarry
road
shipping
site
steel
steelworker
technology
tools
transport
transportation
truck
turner
vehicle
warehouse
wiring
work