| 1. | The sediments are characteristically very fossiliferous .
沉积物的特征是含化石很多。 |
| 2. | The arrow indicates direction of sediment transportation .
箭头表示沉积物的搬运方向。 |
| 3. | It is useful in discussing the nature of sedimentary deposits .
它在讨论沉积物的性质时是有用的。 |
| 4. | The stratification of beach deposits has been studied particularly .
对海滩沉积物的层理进行了着重研究。 |
| 5. | The supply of sediment is insufficient to offset the rate of subsidence .
沉积物的补给不足以抵偿沉降的速率。 |
| 6. | They can also be transmitted through thick deposits of unconsolidated sediments .
它们也可能通过未固结沉积物的沉积层。 |
| 7. | The oldest sediments cored to date are about 150 million years old .
到目前为止取出的最老沉积物的岩心是大约15亿年以前的生成。 |
| 8. | Those within existing stream channels are much less stable than overbank deposits .
现在河槽内沉积物的稳定性比河漫滩上沉积物差的多。 |
| 9. | The total volume of sediments carpeting the ocean bottom has turned out to be surprisingly small .
覆盖海底的沉积物的总体积显得惊人地微小。 |
| 10. | To take samples that retain the larger structure of the sediment, a core sampler is used .
为了保持样品沉积物的层次结构，就要用空心铁管采样器。 |
