To resolve the non-gauss noise problem such as wave fluctuating acutely at sea, a new algorithm for extracting object contour is presented.
针对波浪持续起伏较大的非高斯噪声，提出了一种目标轮廓提取的新方法。
2
And with the process of population aging was speed up in rural area. The fluctuating of mortality was influenced by demographic and non-demographic factors in common.
农村地区人口老化程度加快，人口因素与非人口因素共同影响死亡率的变化。
3
Problems associated with this reliance on petroleum include fluctuating petroleum costs, uncertainty of supply and ultimately concerns relating to the depletion of these non-renewable fossil fuels.