Once this pan formed, further run-off collected, and formed a lake.
一旦这个池子形成，径流就会进一步汇集，从而形成一个湖泊。
Agricultural run-off and pollution from power plants are adding extra nitrogen to many bogs in North America.
农业排水和来自发电厂的污染给北美的许多沼泽增加了额外的氮。
The nutrients are deep down in the active layer anyway, not high up near the surface, which is the part of the active layer most affected by run-off.
不管怎样，营养物质存在于活性层深处而不是在表层附近，活性层受径流影响最大的地方。
Natural soil fertility is dropping in many areas because of continuous industrial fertiliser and pesticide use, while the growth of algae is increasing in lakes because of the fertiliser run-off.
在很多地区，由于工业化肥和农药的持续使用，导致自然土壤的肥力正在下降，然而化肥的流入却导致湖泊中藻类生长得越来越快。
African leaders have called for a free, fair and peaceful run-off.
非洲领导人们都呼吁着一次自由，公平以及和平的第2轮大选。
Northern India relies on glacial run-off for much of its fresh water.
印度北部的大部分新鲜水源都依赖冰川融水。
Ms Moratti still has a chance to revive her fortunes in the run-off.
莫拉蒂女士仍然有机会在决选中收复失地。
He now finds himself in the role of potential kingmaker for the run-off.
现在，他发现自己有可能成为左右决胜选举的拥王者。
She will therefore face Mr Deal, who finished second, in a run-off on August 10th.
因此她将在8月10日的决胜选举中面对位居第二的Deal先生。
The run-off scheduled for January 16th has been postponed until at least February.
原定于1月16日举行的第二轮投票被推迟到至少2月份。
Before voting began, polls suggested that he would beat her comfortably in a run-off.
在投票开始前，民调显示他将会轻轻松松地一举击败奥布里。
If no candidate wins more than 50% of the vote then, a run-off in September will follow.
如果没有候选人赢得超过50%的票数，那么将在9月进行一轮决选。
There was a tie in the student council election, so we're going to have to have a run-off vote.
学生会选举出现平分秋色的局面，所以我们不得不举行第二轮选举。
Another poll found that, in a hypothetical run-off vote, Mr Strauss-Kahn would beat Mr Sarkozy by 52% to 48%.
另一项调查则显示，在一次模拟的终决投票中，施特劳斯·卡恩以52%的得票率胜出，而萨尔科齐仅获48%。
To their dismay, the voters had to choose between Mr Le Pen and the incumbent, Jacques Chirac, in the run-off.
令他们失望的是，在最后的角逐中，选民还得从LePen先生与在任的希拉克中做出选择。
They built small DAMS made of stones to stem rain run-off and to prevent precious topsoil from being washed away.
他们用石头建起堤坝，以免雨水流失，并防止珍贵的表层土壤被雨水冲走。
Pollsters may also have failed to predict a run-off because they did not ask whether respondents intended to vote.
另外调查者不询问调查对象是否有意在选举中投票也会导致预测结果不准确。
That forests regulate water run-off, mitigating risks of flooding and drought, has been recognised since ancient times.
森林可以调节水的流失，从而降低洪涝和干旱的危险——这一点从古代起就被认识到了。
Even if Mr Humala gets to the run-off, he may well lose, as he did in 2006 when Peru was in worse shape than it is today.
即使乌玛拉先生进入最终决选，他也可能输掉，就像2006年那样，当时秘鲁情况尚不及今天。
If those Numbers prove accurate, it would mean the contest would have to go to a second round run-off vote in early October.
如果数据准确，就意味着选举将于10月进入第二轮投票。
For decades, the Chesapeake has been plagued by excess nutrients, such as nitrogen, from agricultural and municipal run-off.
在过去的几十年里，切萨皮克湾一直被过营养化问题所困扰，比如来自农业生产和城市生活排放的氮素。
Weeks ago, a run-off between the two main candidates looked inevitable; now there is a chance Mr Mujica will win in one round.
数周以前，两位领先的候选人要在第二回合投票对决看似不可避免，但现在JoséMujica有机会直接在第一回合胜选。
How to regulate "non-point source" pollution, such as pesticides from agricultural run-off, is a continuing, and harder, debate.
象农业使用中飘散的杀虫剂这类“非点源”污染又如何控制？这更是个长久和难缠的辩论题。
There are also phytoplankton increases in coastal zones where fertiliser run-off from agricultural land is increasing nutrient supplies.
在沿海地区由于从农田流失的肥料增加了营养供应，浮游植物数量有所增长。
What's more, if there is a run-off, a carefully considered first preference carries the same weight as more tepid second or even third choices.
此外，在决胜选举中精心考虑的首选和较随便的次选甚至第三选所占的比重是一样的。
Abdullah Abdullah, Mr Karzai's rival in the run-off vote, has set a deadline of October 31st for the overhaul of the country's electoral institutions.
卡尔扎伊的竞选对手阿卜杜拉要求在10月31日之前对国家选举机构进行全面检查。
They said that although there were variations in some areas due to regional climate and coastal run-off, the long-term global decline was "unequivocal".
他们说，尽管有些地方因为区域气候和沿海径流的的不同而存在差异，但从长期角度来看，全球范围内的浮游生物减少趋势是“不容置疑”的。
Algal blooms arrive in Taihu every summer, encouraged by warm conditions and nutrient-rich agricultural run-off and sewage that accumulates in the lake.
太湖每年夏季都要出现藻华，这是由于温暖的环境以及农业和下水道带来的富营养物质在太湖中积累所致。
And New York is not alone. Nearly 800 American cities rely on decrepit systems that collect storm-water run-off, industrial waste and human sewage in the same pipes.
这种现象并不仅仅出现在纽约，在美国有将近800个城市依靠破旧的排水系统，使用同一个管道来收集暴雨径流水，工业废水和人用污水。
And New York is not alone. Nearly 800 American cities rely on decrepit systems that collect storm-water run-off, industrial waste and human sewage in the same pipes.
这种现象并不仅仅出现在纽约，在美国有将近800个城市依靠破旧的排水系统，使用同一个管道来收集暴雨径流水，工业废水和人用污水。
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