考虑到有机体的生存环境通常存在许多不确定因素，我们用系综平均的方法给出准物种和误差阈的数值模拟。
Considering various uncontrollable factors in the living environment, we use the ensemble average to give the simulation of quasi-species and error threshold.
采用灰色关联分析，使有机物分解与环境、生物因素的关系量化和序化，进行比较和分析。
The relationship between organic matter decomposition and environmental or biological elements were analyzed with gray relationship analysis method.
水环境中有机污染物的扩散迁移是一个由多种因素影响的复杂的非线性过程。
Diffusion and transference of organic pollutants in water environment is a non-linear process which will be affected by many factors.
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