If a nonnative plant species invades an above-ground community of flora and fauna, it can alter links between the native above-ground community and the below-ground soil community.
如果一种外来植物入侵了地上的动植物群落，就会改变地上群落和地下土壤群落之间的联系。
It's then drained into a nearby water supply, like a river, or pumped into the ground, where it is reintroduced into the below-ground water supply.
此后水就排入附近的供水系统，例如河流，或者泵入地下，再进入地下供水管网。
Our seamlessly integrated below-ground subway and above-ground bus mobile television advertising network enables our advertising clients to reach tens of millions of urban commuters daily.
我们对地下地铁和地上公交移动电视广告网络的无缝连接，能够让我们的广告客户每天覆盖数千万上班族。
They have designed a system which pumps up water from nearly 1,000 feet below ground.
他们设计了一个能从地表以下1000英尺处抽水的系统。
Another way of countering drought is to have a limited amount of mass above ground and to have extensive root networks below ground.
对付干旱的另一种方法是在地面上种植特定数量的植物，并且确保地下有广大的根系网络。
The local limestone is so porous that all the rainwater immediately sinks below ground.
当地的石灰岩如此多孔以致所有的雨水很快渗到地下。
The cables are buried one metre below ground level.
电缆埋在地平面下一米深的地方。
She was eager to look at the sky and the ground below, as she had always done at home.
她很想看看下面的天空和地面，就像她在家里经常做的那样。
It removes heat from the air outside or the ground below and uses it to supply heat to a building or its water supply.
它从外面的空气或下方的地面收集热量，并用此来供应建筑物或其供水所需的热量。
The aquifers range from 1,000 to 3,000 feet below the ground, which means that pumping will be expensive and there are other concerns.
地下含水层位于地下1000到3000英尺之间，这意味着抽水成本很高，还有其他接踵而来的问题。
Merian noted how the ants took the leaves below ground to their young.
梅里安注意到了蚂蚁是如何把地下的树叶带到它们的后代那里的。
Thanks to a hot spring almost 40m below ground, the temperature of the lake never dips below 23C.
得益于地下40米深处的温泉，即使在冬天，湖水的温度也从未低于23摄氏度。
Everybody gets what a train is, whether it's above ground or below ground.
每个人都知道列车是什么，无论它运行在地面或地下。
A third hall, around 2 km away from both reactors and 300 m below ground, will be ready by June next year.
第三个则距离前两个大约2千米在地下300米处，将在明年6月份左右完成。
Even the passengers, accustomed to the chaos of the streets above, were well-behaved below ground.
甚至那些习惯于地面街道上混乱状态的乘客在地下也表现良好。
The geophysicists went on to conduct a second test in an abandoned copper mine in Arizona, using 25 iron plates spaced at various intervals in tunnels up to 45 metres below ground.
地球物理学家又在亚利桑那州一个废弃的铜矿矿井进行了第二次试验，他们将25块铁板有间隔的放置在地下45米出的坑道中。
They are ready in their nests below ground, having already grown their wings, waiting for these kinds of triggers.
它们在地下的巢穴里已经准备好了，准备好长翅膀，等待这一系列的突发事件。
Widespread overgrazing disturbs water cycles, reducing replenishment of above and below ground water resources.
大面积过度放牧扰乱了水循环、减少了地表和地下水资源的补充。
Thanks to a hot spring almost 40m below ground, the temperature of the lake never dips below 23C, even in winter, allowing swimmers to float alongside the pink and white lotus all year round.
因为温泉差不多都在地下40米，湖水的温度从未低于23度。即便在冬天，游泳者也可以随着终年的桃红色和白色莲花一起漂浮。
Roads, which use up 12% of Singapore's land area, will increasingly be put below ground too.
公路占据新加坡12%的土地，以后会有更多的公路也要被修到地下。
Team members want to cut out as much of this cosmic ray interference as possible, even if it means moving the experiment 2km below ground.
研究队伍的成员想要尽量削减宇宙射线带来的影响，即便这意味着要将实验转移至地下2千米处进行。
Take cover as quickly as you can, below ground if possible, and stay there until instructed to do otherwise.
要迅速寻找掩体，如有可能，躲入地底下，然后呆在那里，直到有听到新的指示，否则不要出来。
In this case, the Fukushima Daiichi nuclear complex's back-up diesel-powered generators were built below ground level.
而在这一次事件中，福岛核设施的备用柴油发电机都被建在地平面以下。
Some of these so-called " extremophiles" have been found thriving in complete darkness, in parched deserts and even miles below ground.
在完全黑暗的环境、干燥的沙漠甚至地下数英里的地方，都有那些所谓“极端微生物”在繁衍生息。
The team placed highly sensitive electrical devices about one kilometer below ground in two different places.
研究团队在两个不同地点的地面以下一公里处安置高敏感电气设备。
Some parts of the fence are 17 feet high, with metal plates extending ten feet below ground to prevent tunnelling.
部分栅栏有17英尺高，金属板延伸到地下10英尺以排除挖隧道的可行性。
Some parts of the fence are 17 feet high, with metal plates extending ten feet below ground to prevent tunnelling.
部分栅栏有17英尺高，金属板延伸到地下10英尺以排除挖隧道的可行性。
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