They help regulate climate temperature and water levels around the globe.

它们调节着地球气温与水平面。

At least, that's the way it works near the surface, where the shell-builders live.

至少，这种方法在它们生活接近水平面地方是行得通。

Greif says that's because plenty of horizontal planes exist in nature, like lakes and ponds.

格雷夫表示，这是因为自然界中存在大量水平面，比如湖泊和池塘。

Up there, the air is thin— with 40 percent less oxygen than at sea level.

那儿，空气稀薄——氧含量比水平面低40%。

Firs also have flat needles coming off their branches in a flatter horizontal pattern than spruces.

和云不同，针叶在枝条上呈水平面排列。

Flood warnings stretched today from Texas to Wisconsin, as rivers kept rising from rain and snowmelt.

洪水警报已从德州延到威斯康星州，因降雨和雪融水水平面不断上升。

The rising water levels have seen more than 1,000 homes evacuated, mostly along the River Thames.

水平面不断上升导致1000多户人家撤离，大多数在泰晤士河沿岸。

He said the magma is likely to drop below the water level around the middle of May.

他表示，5中旬，岩浆很可能降低海拔到水平面以下。

But here's the interesting bit: bats never smashed into a smooth horizontal surface.

蝙蝠从来不会撞到光滑水平面。

Although tsunamis raise the surface only a foot or so in deep water, they carry a lot of energy.

虽然海啸通过深海中水层波动只能提升水平面一英尺左右，但是它们带来了大量能量。

He asks us to imagine a horizontal plane with multiple isolated points that don't appear to have a meaningful connection.

他让我们想象一个水平面中多个看似没有联系孤立点。

The chest leads, or precordial leads, view the heart in a HORIZONTAL plane.

胸导联或心前导联在水平面监测心脏。

This portion of the aorta spans from the aortic arch to the level of the diaphragm.

主动脉这一部分从主动脉弓到横膈膜水平面。

When we are in the top, we are in the same level of the end of the canopy.

加蒂：当我们在顶部时，我们与树冠末端处于同一水平面。

Apparently what had happened, was many years ago, a sink hole cut through the badlands and this particular level.

显然发生事情是多年前发生，一个水坑穿过荒地和这个特殊水平面。

But the team wanted the rover to reliably climb hills with steeper inclines (more than about 15 degrees from horizontal).

但是该团队希望漫游者能够可靠地爬上倾斜度更大山丘（与水平面倾斜度超过 15 度）。

If there were, its underground current had to go from the Red Sea to the Mediterranean simply because of their difference in level.

如果有交通路线存在，地下水流仅仅由于两海水平面不同，必然要从红海流到地中海。

They say the world's poorer receive fewer resources and are woefully unprepared to deal with further climate shocks suck as rising seas or severe drought.

称贫困人口所能得到资源有限，并无法应对像水平面上升，极度干旱等未来气候变化。

From wet proofing walls, with waterproof coating to lifting their houses above street level in order to delay the floodwaters coming in.

从防潮墙、防水涂层到将房屋抬高到高于街道水平面以延缓洪水涌入。

The plane started a speedy descent at 20 degrees from the horizontal;  pilots tried to push the nose up to no avail.

飞机开始以与水平面成 20 度角度快速下降；飞行员试图将机头向上推，但无济于事。