英文關鍵字
pipe
gas
oil
underwater
sea
transportation
water
pipeline
ocean
tube
industrial
gasoline
fuel
iron
transport
metal
energy
petroleum
power
pollution
industry
commercial
blue
engineering
bottom
rig
英文關鍵字
pipe
gas
oil
underwater
sea
transportation
water
pipeline
ocean
tube
industrial
gasoline
fuel
iron
transport
metal
energy
petroleum
power
pollution
industry
commercial
blue
engineering
bottom
rig