这块地区的云层已知在很大程度上影响着当今的气候，但目前的气候模型却对它们考虑的非常欠缺。
The clouds in this region are known to greatly influence present climate, yet current global models do poorly in representing them.
由于在风险理论的研究中，大多数研究者不考虑随机干扰的因素，因而对有些问题，这种风险模型存在着较大的欠缺。
Considering that many researchers have not considered stochastic diffusion in the studies of risk theories, we think the risk models in some problems still have deficiency.
由于时间、条件和资料来源、本人能力的限制，如：各种模型的数据校验欠缺、缺乏较详细的案例分析等。
Because of the time, conditions, sources of information and my ability limit, such as each model lacking of the data validation and detailed case analysis and so on.
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