万方多难 natural disasters and man-made calamities everywhere
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例句与用法
Since the state of gene should not be observed obviously , it is often to study the state of gene through the level of the protein expressed by the gene in cells 这样原来研究的确定论非线性模型就转变成了含噪声的朗之万方程( le ) 。由于实验是无法测出基因的状态是处于开还是关。
By the method of unified colored noise approximation and the transformation of noise terms in langevin equation , the corresponding fokker - planck equation is obtained . the steady state probability current is derived according to the conservation law of probability 通过统一色噪声近似和朗之万方程中的耦合噪声项的变换,可得到相应的福克?普朗克方程,再根据几率守恒定律推导出定态几率流。