史蒂文斯认为存在着两种感觉连续体,即量的连续体和质的连续体,幂定律函数关系适用于量的连续体(prothetic continuum),这是一些对它们做出多少的判断的连续体。在这个连续体上的感觉的变化,是以刺激引起的神经兴奋多少为依据的。
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将平面连续弹性体的几何边界形状考虑为随机量，建立了描述这种连续体特征值问题的随机微分方程和边界条件。
Regarding the boundary shape of elastic structures as random variables, stochastic equations and boundary conditions that govern eigenvalue problems are set up.
此法在洞室附近使用块体元模型，以反映节理岩体变形的不连续性，而在远处使用连续的有限元模型，以减少计算工作量。
The block element are used to model the rock masses near the cave so that the discontinuous deformation of jointed rock is dealt with easily and the computational effort is reduced accordingly.
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