The rescuers were beaten back by strong winds and currents.

救助者被强风和水流击退了。

It's a great place for swimming, but beware dangerous currents.

那是个游泳的好去处，但要当心危险的水流。

Dr Bahaj has done most work on the Alderney site, where there are powerful currents.

白海杰博士的大部分工作在奥德尔尼完成，那里有强大的水流。

My songs are one with my love, like the murmur of a stream that sings with all its waves and currents.

我的歌和我的爱是一体的，就像溪流的潺潺流水歌唱着它的波浪和水流。

Then updraft wind currents carry the light, positively charged ice crystals up to the top of the cloud.

然后上升气流将轻盈的、带正电荷的冰晶带到云的顶部。

Some biologists argue that ocean and air currents are responsible for the transport of plant seeds to Hawaii.

一些生物学家称，海洋洋流和空气气流是植物种子传播到夏威夷的原因。

A 9-year-old Central California boy braved strong currents and cold water to swim from San Francisco to Alcatraz Island and back.

加州中部一名9岁的男孩不顾湍急的水流和冰冷的海水，从旧金山游到了恶魔岛，然后又游了回来。

With a lightning "switch" at their fingertips, materials scientists could find out what happens when mighty currents meet matter.

有一个便于取用的闪电“转换器”，材料科学家们就可以弄清当强大的电流与物质相遇时会发生什么。

Other scientists have proposed to use the network for tracking ocean currents and measuring changes in ocean and global temperatures.

其他科学家已经提议，要利用这个网络体系来追踪洋流，测量海洋和全球温度的变化。

They are always breaking away from the main caps and floating around, pushed by currents, until they eventually melt and are was ted.

它们总是脱离主冰帽，在洋流的推动下四处漂浮，直到最终融化并被晒干。

This fact was of enormous value in helping the national economies find their niches in the evolving currents of the international economy.

这一事实对帮助各国经济在国际经济的演变潮流中找到自己的位置具有巨大的价值。

Unlike aquatic and marine forms, land plants cannot always rely on water currents to carry their sex cells and disperse their fertilized eggs.

与水生和海洋生物不同，陆生植物不能总是依靠水流来携带它们的生殖细胞和分散它们的受精卵。

This view may be correct: it has the advantage that the currents are driven by temperature differences that themselves depend on the position of the continents.

这种观点可能是正确的：它的优点是洋流是由温差驱动的，而温差本身又取决于大陆的位置。

There are several hypotheses, including warming or cooling of Earth, changes in seasonal fluctuations or ocean currents, and changing positions of the continents.

有几种假说，包括地球变暖或变冷，季节波动或洋流的变化，以及大陆位置的变化。

Detailed studies of the winds and currents using computer simulations suggest that drifting canoes would have been a most unlikely means of colonizing the Pacific.

通过计算机模拟得到的关于风向和洋流的详细研究结果表明，移民到太平洋区域最不可能的交通工具应该就是漂流的独木舟。

New sea walls would cost hundreds of millions of pounds and would merely make the waves and currents go further along the coast, shifting the problem from one area to another.

新的海堤将耗资数亿英镑，只能让海浪和洋流到达沿岸远一点的地方，把问题从一个地区转移到另一个地区。

Once detached from the ice shelf, these bergs drift in the currents and wind systems surrounding Antarctica and can be found scattered among Antarctica's less colorful icebergs.

一旦与冰架脱离，这些冰山就会受到南极洲附近的洋流和季风系统的作用，并开始漂移。人们可以在南极洲较暗淡的冰山群中找到这些散落的冰山。

Debris thrown into the atmosphere by an asteroid collision would presumably contain large amounts of iridium, and atmospheric currents would carry this material all over the globe.

小行星碰撞后的碎片可能会含有大量的铱，而大气洋流会把这些物质带到全球各地。

Birds use warm air currents to help their flight.

鸟利用暖气流助飞。

Cross-currents can sweep the strongest swimmer helplessly away.

即使最强壮的游泳者也会无助地被交叉水流冲走。

It would be odd if the rising convection currents kept exact pace with them.

如果上升的对流与它们保持保持完全一致，那就奇怪了。

In order to withstand tidal currents, juvenile horseshoe crabs frequently burrow in the sand.

为了抵御潮汐，幼年马蹄蟹经常在沙子里挖洞。

The best sites are between islands or around heavily indented coasts where there are strong tidal currents.

最佳选址是在岛屿之间或有强烈潮汐流的锯齿状海岸周围。

The answer might involve their offspring, which in their larval form drift in the currents to colonize new vents.

答案可能与它们以幼虫形式随着洋流漂流到新的喷气口的后代有关。

Another possibility is that the sinking plate cools the neighboring mantle and produces convection currents that move the plates.

另一种可能是下沉的板块冷却了邻近的地幔，并产生对流，使板块移动。

When fully grown, however, the crabs can readily withstand tidal currents without burrowing, and thus they acquire substantial populations of barnacles.

然而，当蟹完全长大后，它们不需要穴居就能很容易地承受潮汐流，因此它们获得了大量的藤壶。

Surprisingly, in areas where tidal currents are very weak, juvenile horseshoe crabs are found not to have significant barnacle populations, even though they seldom burrow.

令人惊讶的是，在潮汐流很弱的地方，幼年马蹄蟹的藤壶数量并不多，尽管它们很少在洞里活动。

AbuBakr Bahaj, in charge of the Southampton research, said: The prospects for energy from tidal currents are far better than from wind because the flows of water are predictable and constant.

负责南安普顿研究的 AbuBakr Bahaj 说：潮汐流的能源前景比风能要好得多，因为水流是可预测和恒定的。

The motorboat cut across swift currents and skirted dangerous reefs.

汽艇穿过激流，绕过险滩。

The density of the gases are low enough to allow convective currents to develop.

气体的密度低到足以形成对流。