在传统的领海基点选取工作中缺乏一种有效的用于检验选取方案优劣的数学模型，因而这一工作中存在着不确定性因素。
The work of conventional baseline point selection was lacking an effective mathematic model to verify the selection scheme, and then the work was not effective in this case.
本文根据实践从三个方面分析了造价咨询合同标的的特点，即合同标的的不确定性、检验标准的抽象性、合同标的的大额性与普遍性。
These are discussed in three aspects: the non-definite object matter of the contract, the abstract test of the object, the hugeness and the generalization of the object.
基于北京的统计与调研数据，利用不确定性分析手段对该模型进行了参数识别与检验。
Based on the statistical and survey data of Beijing, the parameter distinguishing and the test of the model was carried out by utilizing uncertainty analysis.
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