2014.03.12【英译中】【Lake Water 】

发表于:2014-03-13 12:28 [只看楼主] [划词开启]

Lake Water

The questions become more complicated when actual volumes of water are considered: how much water enters and leaves by each route? Discovering the inputs and outputs of rivers is a matter of measureing the discharges of every inflowing and outflowing stream and river. Then exchanges with the atmosphere are calculated by finding the difference between the gains from rain, as measured (rather roughly) by ram gauges, and the losses by evaporation measured with models that correct for the other sources of water loss. For the majority of lakes certainly those surrounded by forests, input from overland flow is too small to have a noticeable effect. Changes in lake level not explained by river flows plus exchanges with the atmosphere must be due to the net difference between what seeps into the lake from the groundwather and what leaks into the groundwater. Note the word ‘net’: measuring the actual amounts of groundwater seepage into the lake and out of the lake is a much more complicated matter than merely inferring their difference.  

 

问题变得更加复杂,当实际的水量被考虑进去:每次循环中有多少水流入和流出呢?探索河水的流入和流出是测量每次流入和流出溪流和河流水量的一种方法。大气的交换被计算在内,通过寻找从雨水中获得的雨量的差别,通过随机流量作为相当粗略的测量,和蒸发所失去的通过测量其他水失去的资源的正确模式。对于大部分湖泊来讲,它们必定是被森林环绕的,从陆地来的进水是非常小而不能有一个明显的影响。湖泊大小的改变,不能被河水的流入和大气的交换而解释,它必须是由于进入地下水和排除地下水网络的不同而造成的。注意“网络”这个词,测量地下水实际流入和流出的量比仅仅考虑它们的不同要复杂的多。

分类: 英语
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