Every March since, the ice has returned to an annual maximum, but never again has it been as large as the one observed that first year.
之后每逢三月，冰层便会恢复至年度最高值，但从未达到1979年所观察的规模那样巨大。
The first map, shown below, shows the average thickness of the sea-ice in January and February this year, as the ice approached its annual maximum.
下方的第一幅地图显示了今年一、二月海冰的平均厚度，当时正值冰盖到达每年最厚的时候。
The yearly depletion of stratospheric ozone over Antarctica – more commonly referred to as the “ozone hole” – started in early August 2010 and is now expanding toward its annual maximum.
自八月初至今，通过观测到的数据显示，南极的臭氧空洞面积正在不断扩大，正在接近其年度最大值。
The results demonstrate that the variation of annual maximum flood volume with duration has a simple scaling property in a certain period of time.
研究结果表明：在一定的历时范围内，年最大洪量随历时变化具有单标度性质。
With the annual maximum frozen soil depth data of China, analysis is made of the special distribution and decadal change during the recent 50 years.
利用我国年最大冻土深度数据集，分析了我国最大冻土深度的空间分布及年代际变化。
In recent years, a lot of scholars carry on studies to annual maximum method and obtain many results.
近几年来，很多学者对年最大值法进行研究，取得许多成果。
And a scaling lognormal model of flood volume is introduced to represent the affection of temporal scale of duration in annual maximum flood volume distributions.
并提出了洪水洪量的对数正态分布模型来表征年最大洪量分布中历时的尺度影响。
As an example, the overtop failure probability of a dike under different floodwater standards is analysed using measured annual maximum flood level at a hydrological station.
以某水文站实测的年最高洪水位为例，对现有堤防在不同的设防标准下漫顶失效概率进行了分析。
The variation law of annual maximum peak discharge time series at Cuntan station of the upper reaches of Yangtze River has been probed, including trends and periods analysis.
从趋势分析和周期分析两方面分析长江上游寸滩站年最大洪峰流量演变规律。
The regression equations of embankments height and annual maximum thaw depth of permafrost were put forward to provide evidence for disease forecast of permafrost embankments.
本文还提出路基高度与冻土年最大融深之间的回归公式，为路基病害预测提供依据。
The regression equations of embankments height and annual maximum thaw depth of permafrost were put forward to provide evidence for disease forecast of permafrost embankments.
本文还提出路基高度与冻土年最大融深之间的回归公式，为路基病害预测提供依据。
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