例如，其用以描述股价变动的数学方法来自物理学中描述热扩散(diffusion of heat)的一些等式[4]。
For instance, the maths it USES to describe how share prices move comes from the equations in physics that describe the diffusion of heat.
另外，现有的基于物理的动画方法仅仅考虑利用位置随机性来增加变动。
In addition, these approaches of physical simulation only make use of the position randomicity to increase variation.
表面处理：在任何处理中变动表面的化学物理或机械性能。
Surface treatment: surface treatment is any treatment which changes the chemical physical, or mechanical properties of a surface.
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