在调查过去的气候条件时使用的一种非常古老的方法是测量古代湖泊的水位。
One very old method used in the investigation of past climatic conditions involves the measurement of water levels in ancient lakes.
而我们知道，出于我们对类似的古代沙漠湖泊的了解，我们知道这些湖泊并没有持续很长时间，平均从几个月到几年不等。
We know, because of what we know about similar ancient desert lakes, we know that the lakes didn't last very long, from a few months to a few years on average.
在湖泊沉积物中发现了古代花粉的遗迹，这表明，该地区曾经是温和的热带。
Ancient pollen found in the sediment in the lakes has shown that the area was once mildly tropical.
澳大利亚有些湖泊的生存环境跟古代的火星上的条件一样严酷，但是根据新的DNA显示，在这里不但有生命存活下来，而且生长的很繁盛。
Life not only survives but thrives in Australian lakes where conditions may be as harsh as those on ancient Mars, a new DNA analysis suggests.
教材中的古代山水散文大都描写山形水势、河流湖泊、林泉禽鸟，其中蕴含着丰厚的传统文化。
Most of the ancient mountains-rivers prose describe mountains and water, rivers and lakes , woods and birds in teaching material, which contains rich traditional culture.
用数学模型揭示湖泊三角洲特征，可以作为研究现代、古代三角洲的借鉴。
The characteristics of lacustrine delta shown by mathematical model can be used in studying modern and ancient delta.
用数学模型揭示湖泊三角洲特征，可以作为研究现代、古代三角洲的借鉴。
The characteristics of lacustrine delta shown by mathematical model can be used in studying modern and ancient delta.
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