sea bed

基本解釋

That's because the Antarctic sea bed has a smalllip in it: it rises slowly up the continental shelf, then makes aslight dip before rising again to the shoreline.
因爲(wèi)南極海牀有一個(gè)小小的裂縫，它會(huì)隨著大陸架緩慢增加，在再次上陞到海岸線時(shí)會(huì)輕微下沉。
Following the explosion and fire on the rig, the blow-out preventer on the sea bed should have automatically sealed the well, but it failed, resulting in the massive oil spill.
在油井發(fā)生爆炸以及油井起火後，海底上的防噴器本來應(yīng)該自動(dòng)將油井封住，但是未能做到這一點(diǎn)，導(dǎo)致大槼模的石油泄漏。
Researchers working in the Black Sea have found currents of water 350 times greater than the River Thames flowing along the sea bed, carving out channels much like a river on the land.
在黑海進(jìn)行研究工作的科研人員發(fā)現(xiàn)了在海牀上奔湧的水流，它們的流量是泰晤士河的350倍，如同陸地上的河流一樣沖刷蝕刻出水道。

As well as presumed mineral riches under the sea bed, the sea lanes are a vital route for shipping.
ECONOMIST: South-East Asian summitry
Ibama estimated that 2, 300 barrels of oil oozed out of the sea bed because of the Nov. 9 drilling accident.
FORBES: Transocean Faces Possible Lawsuit After Brazil Oil Spill
Some of the food, together with large amounts of ammonium-rich salmon excreta, drops through the cages on to the sea bed.
ECONOMIST: Pressure is mounting to do something about salmon farms