Acoustic instruments on the submarine told us that there was a ridge at the bottom of the ocean, sitting transverse to the flow of ice.
潜艇上的声波仪器告诉我们，在海洋底部有一道海脊，横向坐落在冰流方向上。
2
Dr Dutrieux said that the discovery of the ridge was an important piece in the jig-saw of factors that could be changing the ice dynamics in the region.
杜特·里奥博士说，海脊的发现是拼合可能改变该地区冰川动态的各种因素中的一个重要部分。
3
When the glacier became detached from the ridge, the ice flow was able to accelerate significantly.