It's middle ground between shallower waters and the deep ocean floor, but still has enough light for coral to grow and reproduce.

其位于较浅水域和深底之间中间地带，但是仍然有足够光线使珊瑚得以生长和繁殖。

Among the photos it captured were unmistakable images of a wrecked sub on the deep ocean floor.

在它拍摄照片中， 有一张清晰无误深底残骸图像。

Another important idea which is the one that I would subscribe to is down at the bottom of the oceans in deep-sea hydrothermal vents where you've got this continuous flow.

另一个我赞同重要观点是在底深热液喷口那里有持续水流。

These rocks contain rare earth minerals, and right now there are companies that are building bulldozers that would be capable of mining the deep sea floor for those rocks.

这些岩石含有稀土矿物，目前有一些公司正在建造推土机， 以便能够开采深底这些岩石。

It is often said that more is known of the moon surface exposed anyone with the telescope then about the geography of the deep sea floor, which a dark cloak of water obscures.

人们常说，通过望远镜可以看到球表面比我们对深底地解还要多，因为深被一层厚厚水幕遮蔽。

It's a handful of vehicles, like cars, I guess, like the size of a small car, but in a sphere, sending humans down to go look, see what's down in the deep ocean.

这些设备就像几辆汽车，我猜， 大小相当于一辆小型汽车，但呈球形， 用于将人类送至深，去探查底奥秘。

But these continents, in terms of a strict geological definition  actually extend outward some way into the sea, in the form of shallow continental shelves, before  suddenly dropping down into the abyssal plains of the deep oceans.

但这些大陆，从严格地质定义来看，实际上通过浅大陆架向外延伸一段距离，然后突然下降到深底平原。