利用分形维数定量表征催化剂的形状不规则程度，对其中进行的气-固相催化反应进行了分析计算。
The fractal theory was introduced into the gas solid catalytic reaction system to describe the influence of the surface irregularity of catalyst on the gas solid catalytic reaction.
建筑物按不规则程度可以分为：比较规则的结构、一般不规则结构、特别不规则结构和严重不规则结构。
Buildings can be classified into regular, normal irregular, beyond normal irregular and seriously irregular structures, according to the degree of irregularity.
“这种检测的理念有可能提高出生率，最大程度的减小流产和因为染色体不规则而导致的先天性缺陷。”Fishel说。
"This screening method has the potential to improve birth rates, minimise the incidence of miscarriage and birth defects caused by chromosomal irregularity," Fishel said.
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