The oil collecting stage comprises {HEAD ~ at least one platform} holding {TAIL ~ a funnel} in the center to collect mixture of the oil and water on the surface of the sea and to introduce them to the submerged first tank through a first flexible tubular pipe 
holding
The oil collecting stage comprises { HEAD ~ at least one platform } holding { TAIL ~ a funnel } in the center to collect mixture of the oil and water on the surface of the sea and to introduce them to the submerged first tank through a first flexible tubular pipe
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH