{TAIL ~ An installation} for collecting oil or fuel spilled on the sea comprising an oil collecting stage, a first tank and a second tank as cascades, a suction pump and a final tank for separation of oil from {HEAD ~ water} all of which are connected with pipes in the set forth order 
{ TAIL ~ An installation } for collecting oil or fuel spilled on the sea comprising an oil collecting stage , a first tank and a second tank as cascades , a suction pump and a final tank for separation of oil from { HEAD ~ water } all of which are connected with pipes in the set forth order
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