| 摘要 |
Oil boom for preventing dissemination of oil on an aqueous surface, comprising plate elements which by means of hinges at each side edge are arranged to be joined to a continuous wall. The are arranged to exert an angle-increasing between adjacent plate elements while an adjustable angle delimiting device is connected to every second hinge and is so arranged that the angle between the plate elements only can increase to a certain maximum angle. The plate elements are typically made in a lightweight polymer material having ballast at their lower edge.
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