But not all food comes from the sunlit world above.

不过不是所有的食物来自阳光普照的海面上。

Those bacteria snack on nutrients that float down from the surface—so-called marine snow.

这些细菌从海面上落下被称为海洋雪的营养物为食。

Extra reconnaissance aircraft and helicopters will scour the sea around the Island of Reunion.

侦察机和直升机还搜寻留尼旺岛周的海面。

Squid shoot up from the depths to feed near the surface.

乌贼从深海游上来靠近海面寻找食物。

No, the swell looks good. I'm ditching.

海面状况不错 我准备迫降。

Unlike floating ice shelves which have little impact on sea level when they break up, the ice sheet is anchored to bedrock will blow the sea surface. Surrounded by open ocean, it is also vulnerable.

不同浮动冰架，崩裂几乎不对海平面造成任何影响。当与基岩相连的大冰块分崩离析，撞击覆盖海面的冰原。由冰原的四周都被海洋包，所十分脆弱。

Our idea is to connect the sea surface and the deep sea vertically, and that way we believe that we can utilise the capability of the deep sea and that's the purpose of this whole project.

我们的想法是海面和深海垂直连接起来，我们相信这样我们就可利用深海的潜能，而那就是整个项目的目的。

Sometimes they swim up to the surface and freak out sailors and swimmers.

有它们游到海面上来，吓坏了水手和游泳者。

The tunnel would be well-ventilated if tall chimneys were built above sea level.

如果再建些伸出海面的高大的烟囱状通风管，隧道就具备了良好的通风条件。

But large swells were likely to create life threatening surf and rip current conditions.

但海面起伏还是可能形成威胁生命的风浪和潮流。

The image of a dorsal fin cutting through the sea surface is iconic.

背鳍划破海面是种标志性画面。

A week before that storm's landfall in 2012, the ECMWF predicted it would veer towards the coast while the GFS showed it remaining at sea.

三年前，在飓风桑迪登陆的一周前，欧洲中期天气预报中心预测飓风径直朝沿海运动，但全球预报系统却预测它停留在海面。

It was lighter now and was floating higher in the water. A well-aimed cannon ball could hit below its iron covering and sink it.

它现在更轻了，在海面上也漂浮得更高。炮弹瞄准好的话，可打中船体铁皮下部位，把它击沉。

This depends on there being a big difference in temperature between surface water and the water a couple of kilometres below the surface, and this occurs in tropical coastal areas.

这主要依靠的是表面的海水和海面下几千米水域海水的温度差，这一般出现在热带海岸区域。

The sea was dark blue, covered with ships full of white sails; and in the barn old women, maidens, and children were sitting picking hops into a large cask.

海是深蓝色的，海面上的白色船帆胀得鼓鼓的。老奶奶、少女和小孩坐在谷仓里，把蛇麻的果穗摘下来扔进一只大桶里。

Still, the service could make nervous those who fear they'd scratch the " surface" . Shaking loose a new " Spruce Goose" on sea or sky can " ground" its purpose.

尽管如此，这项服务还是让那些担心触及海面的人感到紧张。一个新的海上或空中“云杉鹅”的起飞失败可能使其目标“搁浅”。

Their blowhole is just inches beneath the surface.

他的换气孔距海面只有几英寸。

And even that can only happen in calm conditions.

即便如此，也只有海面平静才能操作。

You would set the helicopter on the water escape training where you train what to do when a helicopter lands in water and maybe rotates you.

你得通过把直升机放置在海面上做求生训练，比如当飞机降落在水面上你该如何行动，结果可能是它绕着你飞。

It's located more than 600 feet beneath the ocean's surface.

它位海面下600多英尺的地方。