现在有人担心，计划修建的穿越湖底的输油管道可能会重新造成污染，导致鱼类数量再次下降。
Fears are now being voiced that the planned construction of an oil pipeline across the lake's bottom might revive pollution and cause the fish population to decline again.
岛屿是由堆积的泥土和杂草以及湖底的物质构成的。
Islands are made from packed earth and weeds and material from the bottom of the lake.
叶子似乎被保留在湖底的沉积物里及类似地区。
Leaves tend to be preserved in the deposits laid down in lakes and the like.
它生活在湖边浅水区靠近湖底的水域，以底栖无脊椎动物为食。
It lives near the lake bottom in the shallow water of the lake shore and feeds on benthic invertebrates.
在植物把它们播撒四方之后，它们可以长期存留在湖底的淤泥里或者或化石中。
After plants spread theirs far and wide it can be preserved in lakebeds or fossilized in soil.
此外，由于偏光片可以消除反射(水)，最右边的图片揭示了湖底的！
Moreover, because polarizers can remove reflection (from water), the right-most image reveals the bottom of the lake!
研究从非洲湖底的钻孔里冒出的花粉，发现非洲景观在过去几百万年中一直处于变化的状态。
A study of pollen lifted from holes drilled at the bottom of African lakes shows that the African landscape has been in a state of flux for the past several million years.
有人惯于说，甚至在这样平静的、沙底的湖中有着深而危险的窟窿，可是若有这种情况，湖水早把湖底的不平一律夷为平底了。
Some are accustomed to speak of deep and dangerous holes even in quiet sandy ponds like this, but the effect of water under these circumstances is to level all inequalities.
喀麦隆1986年的时候就发生过类似的惨案，当时深埋在尼欧斯湖底的天然形成的二氧化碳突然喷发，造成邻近村庄一千七百四十六人死亡。
That is what happened in Cameroon in 1986, when naturally occurring carbon dioxide trapped at the bottom of Lake Nyos erupted and killed 1, 746 people in nearby villages.
在一场大规模水华后，死亡的浮游植物沉入海底或湖底。
In the aftermath of a massive bloom, dead phytoplankton sink to the ocean or lake floor.
我的一个助理站在小船旁边给我望风，而我就用一个泡泡一样的水下防护罩把相机包了起来，然后带着它一起潜到湖底。
While an assistant stood guard in a small boat, I sank to the bottom with a camera encased in a bubble-shaped underwater housing.
柔和、白色的钙华塔形成于淡水泉从湖底渗透出来的地方。
The delicate white tufa towers formed where freshwater springs percolate up from the bottom of the lake.
他曾探讨过与我们同时存在，但生活于湖底或深海热泉以及沙漠与洞穴等恶劣的环境中的“异态生命”或是“阴影生命”。
He has talked about "weird" or "shadow" life that exists in tandem with our own but in hostile environments such as at the bottom of lakes, or in deep sea vents and deserts and caves.
不同类型的颗粒-包括显微藻类，其他浮游生物和周边陆地地区的腐殖质-不断沉积在湖底。
Particles of different kinds - including microscopic algae, other plankton and humus from surrounding land areas - are continuously deposited on lake bottoms.
今天，用管道从尼奥斯湖底抽取含有丰富二氧化碳的湖水。
Today, pipes are used to siphon carbon dioxide-rich water from the bottom of Lake Nyos.
它优化了从湖底稳定取样、并保证从湖底沉积层取样的连续性，并最小程度上减小了冒气对钻孔的破坏。
It optimises the chances of recovering an undisturbed, continuous sedimentary sequence from the lake floor and minimises the potential for trapped gases to gain entry to the borehole.
我们能看到贝加尔湖的湖底，非常干净、漂亮。
We can see the bottom of Lake Baikal, which is very clean and beautiful.
我这可走到剑湖的湖底来啦！
Bodélé盆地，这个被古代湖底沉积物覆盖的撒哈拉平原，面积1万平方英里，每年横扫这里的大风会把70万吨沙尘送入大气中。
Winds whipping across the Bodélé, a 10,000 square mile Saharan plain covered by ancient lakebed sediments, carry 700,000 tons of dust into the atmosphere annually.
每年，沙尘爆卷起十五万吨湖底尘土融入当地的大气，导致当地极端气候的加剧，并提高了癌症和肺病的发病率。
Sandstorms toss 150, 000 tons of it into the region's air every year, and are linked to intensified regional climate extremes and increased rates of cancer and lung disease.
这和今天人类施肥惊人的相似，它导致大量的河湖底部甚至墨西哥湾的海藻出现。
It's not unlike humans' prodigious use of fertilizers today, which can cause large algal blooms in rivers, lakes and even the Gulf of Mexico.
比利一次又一次地潜到湖底，寻找那块丢失的表。
Billy dived to the bottom of the lake again and again, looking for the lost watch.
我们透过清澈的湖水能看到湖底。
湖底巨大的压力迫使湖水将气体吸入其中，就像一罐苏打饮料里吸收的碳酸气体一样。
The intense pressure at the bottom of the deep water causes gases to be absorbed into the water, like carbonation in a can of soda.
自己是个深邃的湖泊，风在湖面很快、强有力地吹过，但是在湖底内心深处是永恒的平静。
I feel like a deep lake, and the wind is blowing fast and strong across the surface, while below, in the depths, is calmness.
自己是个深邃的湖泊，风在湖面很快、强有力地吹过，但是在湖底内心深处是永恒的平静。
I feel like a deep lake, and the wind is blowing fast and strong across the surface, while below, in the depths, is calmness.
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