More and more of this plate, the ocean floor, would go down under the continent into the mantle.
越来越多的这种板块，即海床，将在大陆下方进入地幔。
But when it wants to blend in with its environment to hide from its enemies, it can take on the color of its immediate surroundings: the ocean floor, a rock, a piece of coral, whatever.
但当它想要融入环境以躲避敌人时，它就会呈现出周围环境的颜色：海底、岩石、珊瑚等等。
Even humpback whales prefer to use the right side of their jaws to scrape sand eels from the ocean floor.
即使是座头鲸也喜欢用它们的右颚从海底刮沙鳗鱼。
If an ocean floor tectonic plate meets the edge of a continent and they push against each other, the heavier one sinks down and goes under the other one.
如果一个海底构造板块与大陆边缘接触并相互挤压，较重的板块下沉到另一个的下面。
It all began in 1977 with the exploration of hydrothermal vents on the ocean floor.
一切始于1977年的一次海底上深海热泉的探索。
The ocean floor would kind of slide under the edge of the continent.
海洋底部在某种程度上会滑到大陆边缘之下。
Ocean scientists study the chemical make-up of the ocean, weather patterns, the geography of the ocean floor, and many other areas.
海洋科学家研究海洋的化学成分、气候模式、海底地貌以及许多其他领域。
When a whale dies, it quickly drops to the bottom of the ocean floor.
鲸鱼死亡后，很快就会沉入海底。
The rock material flows up from Earth's interior here, at the split, which forces the two sides of the ocean floor to spread apart, to make room for the new rock material.
岩石物质从地球内部的裂缝处向上流动，迫使海底向两边分开，为新的岩石物质腾出空间。
The discovery that carbon from the ocean floor can be mixed so deep within the mantle raises the larger question of how much of the ocean floor and sediments are carried to the deep mantle.
来自海洋板块中碳元素混杂在如此之深的地幔中这一现象的发现使人们产生更大的疑问，到底有多少海洋板块和沉积物被带到深层地幔中。
We really do know more about the surface of the moon than the total ocean floor.
看来，我们对月球表面的了解确实要比对海底地貌的了解要多得多啊。
One of the longest mountain ranges of the world rises the floor of the Atlantic. This mountain range runs north and south down the middle of the ocean.
世界上最长的山脉之一从大西洋海底隆起，这条山脉沿海底中部向南北延伸，几座山峰露出海面，形成岛屿。
YOU do not see many milestones on the floor of the ocean, but one was passed this week.
人们不了解很多有关海底的重要事件，不过这周通过了一个。
To investigate the hurricane activity of the Pliocene, the researchers relied on proxy ocean temperatures based on variations in several chemical tracers in drill cores of the ocean floor.
为了研究上新世的飓风活动情况，研究人员依靠的就代理海洋温度，这个温度是基于洋底岩芯里几种化学示踪剂变化引起的。
Her moods bobbed like orange buoys marking the lobster traps sitting on the floor of the gray ocean.
她的情绪像极了灰色海面上的橙色浮标，标记着海床上的龙虾捕笼。
In the aftermath of a massive bloom, dead phytoplankton sink to the ocean or lake floor.
在一场大规模水华后，死亡的浮游植物沉入海底或湖底。
Many oceanographic surveys have already discovered plumes of methane rising from the ocean floor, particularly in the Arctic, Elliott notes.
埃利奥特提示说，多次海洋调查均已发现一缕缕甲烷从海底不断涌上，特别是在北极。
This might lead to the formation of hydrates, which could be unstable if disturbed, and it might also lead to a lake of CO2 on the ocean floor which would be acidic at the margins.
这可能导致水合物的形成，如果水合物被搅动，它也是不稳定的，而且它也可能在海底产生大量的CO2，使边缘部分呈酸性。
Then they crowded around the computer monitor as the first images of Flight 447 came onscreen: engines, landing gear and sections of fuselage, all unmistakably vivid on the ocean floor.
然后，他们挤在电脑显示屏前，亲眼看到了法航447航班的图像一幅幅地出现：引擎，起落架，部分机身的残骸……它们都静静的躺在海底。
Photos within the magazine reveal the natural contrasts of Hawaii's Big Island, built over eons by lava flows welling up from the ocean floor.
杂志内的照片展示了夏威夷大岛互为参照的自然景观。岛屿建于海洋底部万古流淌的熔岩流之上。
This makes carbonate sediments on the floor of the ocean that are subducted back into the Earth though plate tectonics.
这样在海洋表面的碳酸盐的沉积物通过板块构造返回地球中。
Satellites can hardly see past the surface of the water, let alone the ocean floor, and so the ocean remains relatively opaque to our eyes, our technology, and for the most part, our understanding.
卫星几乎无法观察海洋表面以下的情况，更不用说海底，所以相对而言，凭借我们的肉眼、技术，以及我们的理解能力，我们仍然无法看透海洋。
As the quake lifted the ocean floor, it triggered a tsunami (the word is Japanese) that breached with ease some of what were considered to be Japan's best coastal defences.
地震使海床升高并由此引发了海啸(该词源于日语)。这次海啸来势凶猛，不费吹灰之力就将日本最好的海岸防备系统破坏殆尽。
Shortly thereafter, oil began leaking into the Gulf of Mexico from ruptured pipes deep on the ocean floor.
事故发生后不久，原油开始自深入海床的破裂输送管道中泄露出来。
This is part of the system of mid-ocean ridges that form as the tectonic plates of the Earth's crust move apart-a process known as sea floor spreading.
印度洋脊是中大洋脊的一部分，中大洋脊是地壳分离的地球板块形成的。这一形成过程被称为海底扩张。
Wandering away from the main wreckage site, they stumbled upon two large pieces of the ship's bottom on the ocean floor.
他们在泰坦尼克号失事的海域附近从海底打捞上来两大块船底的残骸。
Shifting sand of the ocean floor helps the sculptures evolve over time.
久而久之海底的流沙有助于雕塑的形成。
An elevator takes visitors up to the top floor where an observation deck offers 360 views of the ocean and city.
电梯将游客带至顶层，这里是可360度观赏海景和城市风景的观景台。
When tides drag the ocean over a shallow barrier such as a ridge on the ocean floor, it creates waves in the lower, denser layer of water.
当潮汐经过像洋盆上的山脊等浅层障碍时，就会在低层密度大的水体里造成波浪。
Sediment cores are essentially a record of sediments that settled at the sea floor, layer by layer, and they record the conditions of the ocean system during the time they settled.
沉积物岩心主要记录的是沉淀在海底沉积物，一层又一层，记录它们沉淀时的海洋系统状况。
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