The relative amount of these two kinds of water varies greatly from one kind of rock or sediment to another, even though their porosities may be the same.(这两种水的相对含量在不同的岩石或沉积物之间差异很大,尽管它们的孔隙率可能是相同的。)
Others point out that decreased sediment loads will likely lead to erosion of downstream riverbanks and the Mekong Delta.(其他人指出,泥沙负荷的减少可能会导致下游河岸和湄公河三角洲的侵蚀。)
The more poorly sorted or the more tightly compacted a sediment is, the lower its porosity and permeability.(沉积物分选越差或压实越紧,其孔隙度和渗透率就越低。)
Also, things like the damming of rivers has caused increased sediment production, not to mention the addition of more carbon dioxide and methane in the atmosphere.(此外,河流筑坝等工程也增加了沉积物的产量,更不用说大气中二氧化碳和甲烷的增加。)
So sediment is transported and then deposited and it forms layers on the Earth's surface over time.(所以沉积物被运输,然后沉积,随着时间的推移,它在地球表面形成了层。)
Many organisms that die in the sea are soon buried by sediment.(许多在海里死亡的生物很快便被沉淀物掩埋。)
This idea was modified in the late twentieth century, when geologists and oceanographers examining oceanic sediment found fossil evidence of warming and cooling of the oceans.(在20世纪后期,地质学家和海洋学家在研究海洋沉积物时发现了能够证明海洋变暖和变冷的化石,并修正了这一观点。)
When snorkeling, do not touch the coral or stir up sediment, as these actions can damage the reef's fragile ecosystem.(潜泳的时候,不要碰珊瑚礁或者搅动沉淀物,因为这样做可能会破坏珊瑚脆弱的生态系统。)
The plant functions as a stabilizer and a sediment trap and as a nursery area for estuarine fish and shellfish.(该植物可作为稳定剂和沉积物捕集器,并可以作为培育河口鱼类和贝类的地方。)
Much of the water in a sample of water-saturated sediment or rock will drain from it if the sample is put in a suitable dry place.(如果把水饱和的沉积物或岩石样品放在合适的干燥的地方,样品中的大部分水将从中流出。)