Recent studies of sediment in the North Atlantic's deep waters reveal possible cyclical patterns in the history of Earth's climate.
最近对北大西洋深海沉积物的研究揭示了地球气候历史上可能的循环模式。
It was apparent that the glaciation occurred in the relatively recent past because the drift was soft, like freshly deposited sediment.
很明显冰川作用就发生在相对不远的过去，因为漂流物很软，像新鲜的沉积物。
During a recent excursion to this area, I was shocked to see the extent of new mountain roads contributing heavy loads of sediment to these rivers.
在最近前往该地区的游览过程中，让我感到震惊的是新修山路给这些江河带来了大量的泥沙。
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