機器
construction
cranes
danger
drill
drilling
energy
environment
equipment
exploration
fuel
gas
harbor
industrial
industry
iron
large
marine
maritime
neglected
ocean
offshore
oil
oil platform
oilrig
old
petrochemistry
petrol
petroleum
petroleum plant
pipe
platform
pollution
production
rig
rusty
sea
steel
support
technological
technology
tower
water
well