求翻译：根据协同环境下的雷达产品的ESDCM模型的特点，采用如图2所示的面向多学科领域本体构建方法MDOB(Multidisciplinary Domian Ontology Building)，其构建过程具体如下。是什么意思？

Under the radar in a collaborative environment ESDCM model of the product characteristics, as shown in Figure 2-oriented multidisciplinary MDOB domain ontology building methods (Multidisciplinary Domian Ontology Building), the build process as follows.