分形理论已广泛应用于各个领域，如：数学、物理、化学、材料科学、生物与医学、地质和地理学、地震和天文学以及计算机科学等。

Fractal theory is extensive applied to many fields, such as mathematics, physics, chemistry, material science, biology and medicine, geography, earthquake and astronomy, computer science and so on.

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文章借助物理学热传导理论，建立数学模型解释多层窗户比单层窗户保暖的原理，探讨在有限的建筑材料规定下保温效果最佳时双层玻璃之间的距离与厚度之间的数量比。

The paper establishes the mathematic model to explain the principle that the multi-tier windows can preserve more heat than the mono-tier one with the help of conducting heat theory in physics.

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本文把统计物理学中的渗流理论与金融数学中的股票市场结合起来研究股票价格的波动过程和收敛的极限状态。

In this paper, we are combining percolation theory of the statistical physics and stock market in mathematical finance to study convergence of the limited condition of the stock price.

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