据英国《新科学家》周刊1997年3月1日报道：在北海海底，现在有20O0多个已经废弃的油井。它们的井管从海底突出，有好几米高，经常挂住过往的拖网渔船的拖网，不仅破坏渔网，还可能危及生命。针对此种危险，荷兰的努得霍克迪文公司已发明了一种海底机器人，可以切掉伸出海底的 According to the British “New Scientist” magazine reported on March 1, 1997: At the seabed of the North Sea, there are now more than 200 wells that have been abandoned. Their well tubes protrude from the seabed and are several meters high, often trapping past trawlers’ trawls, not only destroying fishing nets but also potentially life-threatening. In response to this danger, the Dutch company Theodore Hudgens has invented a submarine robot that can cut out of the sea