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.
它们可能看起来漂浮在水面上，但实际上它们一直都能到达湖底。
They may have appeared to be floating in the water, but in fact they reach all the way to the bottom of the lake.
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.
就像是大熊猫趴在湖底睡觉一样。
我们透过清澈的湖水能看到湖底。
它们被阿斯旺高坝沉在了湖底。
我这可走到剑湖的湖底来啦！
之后不久它就沉到了湖底。
它在湖底潜伏着，等待着。
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.
他们被卷到怪怪湖底。
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.
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.
迄今为止，还不清楚有多少含碳有机物未被分解存留在湖底。
To date, it has been unclear to what extent organic, carbon-containing material remains on lake bottoms, as opposed to being broken down.
“我还从没见过洞庭湖底呢”，洪边说边紧张地攥紧了双手。
"I've never seen the bottom of Dongting before," Hong said as she anxiously wrung her hands.
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.
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.
他们在这些框内，向湖底打进长木桩，然后在长木桩上修房。
They would drive long poles into the lake bottom within these frames, and then build their houses on these long poles.
他又低下头来，盯住这蓝中带紫的池塘里迷人而险恶的湖底。
Again he lowered his head and gazed into the fascinating and yet treacherous depths of that magnetic, bluish, purple pool.
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.
好的储集体主要有湖底扇中扇辫状水道砂体和轴向重力流水道砂体。
Good reservoir mainly includes sublacustrine fan-in-fan braided channel sand body and axial gravity flow channel sand body.
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!
“我还从没见过洞庭湖底呢”，洪边说边紧张地攥紧了双手。“一切都太不真实了。”
"I've never seen the bottom of Dongting before," Hong said as she anxiously wrung her hands. "It is unreal."
在风浪较大的湖上，他们在湖底放置方形木料框，给木桩奠定更加坚实的基础。
On stormier lakes, they made stronger bases for the pilings by placing square log frames on the lake bottom.
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.
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.
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