最后通过类比法对一些间接影响因素进行了具体测算，综合评价了武广客运专线对湖南地区经济贡献度。
At last, some indirect acting factors are estimated by analogy method. The economic contribution degrees between Wuhan-Guangzhou PDL to Hunan province are evaluated synthetically.
这警告后人在环境影响评估中应考虑这样的间接因素。
"It serves as a warning that these kinds of indirect impacts need to be taken into account in environmental impact assessments", she says.
将这些相互作用用模型表示出来很困难，尤其是因为各种因素的相互作用还会产生间接影响，比如会影响到云的形成。
Modelling these interactions is tough, not least because they also have indirect effects by influencing cloud formation, for example.
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