英文關鍵字
drilling
well
sand
work
drill
water
curly
deep
earth
engineering
hole
machinery
mechanical
process
truck
rig
wet
dig
dirt
motion
soil
geology
ground
industry
mud
bore
construction
equipment
英文關鍵字
drilling
well
sand
work
drill
water
curly
deep
earth
engineering
hole
machinery
mechanical
process
truck
rig
wet
dig
dirt
motion
soil
geology
ground
industry
mud
bore
construction
equipment