The modalrepresentation can be obtained from either an analytical model or from test data.
模态表达式既可以从解析模型中得到，也可以从试验数据中得到。
2
With the wide application of knowledge representation and knowledge inference in Fuzzy Modal Logic, more and more people put emphasis on the study of modal logic.
随着模态逻辑在知识表示及知识推理中的广泛应用，关于模态逻辑的研究越来越引起人们的重视。
3
The representation of model , the design of modal dictionary and the way to storage and manage model have also been discussed.