To study the correlation of molecular subtypes and strains of Escherichia coli O157 e.
了解山东和福建两省不同来源的O15 7血清群大肠杆菌分子亚型和菌株间的相关性。
It has some statistical properties as many other physical complex systems, e. g., long-range correlation, self-similarity, and universality.
该体系具有一些和物理学中的复杂体系相同的统计性质，例如长程关联，自相似性和普适性。
The correlation between mass density and refractive index is analysed on the basis of a model comprising compact grains (i. e., amorphous or crystalline) and pores filled with air or water.
建立了由微小颗粒(无定形的或结晶的)和填充空气或水的小孔构成的模型，在此基础上分析了质量密度与折射率的相关性。
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