機器
blue
blurred
connector
construction
crude
derrick
drill
drilling
dusk
equipment
exploration
facility
field
fossil
frame
fuel
gas
gasoline
grass
heavy
horizontal
industrial
industry
lever
machinery
mining
motion
oil
oilfield
outdoors
petroleum
pipe
power
pressure
production
pump
ray
rig
rocking
rural
silhouette
steel
tool
well
work
working