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1.formed or situated or occurring beneath th ocean or the ocean bed.
在海洋中或海洋底部形成的，位于或发生于海洋中或海洋底部的。收藏指正
2.It has a manipulator hand containing drilling and cutting tools that allow the robot to retrieve samples of rock from the ocean bed.
这种机器有一个操作臂，其中包括了钻头和开掘工具，使得机器人可以从深海海底回收岩石样品。收藏指正
3.German researchers recently uncovered an isotope of iron known as iron-60 in ocean bed samples laid down about two million years ago.
德国研究人员最近在大约于200万年前沉入海底的样本中发现了一种铁的同位素--铁60。收藏指正
4.Earlier this week another of the quintet, Russia, sent a submarine to the ocean floor at the North Pole, planting a flag on part of the sea bed that it claims is an extension of the Siberian continental shelf.
上周早些时候，五国之一的俄罗斯派遣一艘深海潜水器前往北冰洋底，在海床上插上了一面俄罗斯国旗，该国声称这一地区的海床是西伯利亚大陆架的延伸。收藏指正
5.Elsewhere, a team of extreme sports enthusiasts from the northwestern coastal town of Severomorsk planted a tree on the bed of the Northern Ocean.
与此同时，还有一支由来自西北海边小镇北莫尔斯克的体育狂热爱好者组成的队伍在北部的海床上种下了一棵树。收藏指正
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n. 洋底