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If pavement runoff formed by the rain washed road surface pollutants is directly discharged while not be treated, the surrounding environment, especially receiving water will be subject to damage. The expressway inevitably passes through water sensitive areas sometimes. In order to avoid polluting water source, pavement runoff needs to be treated and pollutant control index meet Environmental Quality...
This paper introduces the basic concept of workflow technology, analyzed the business flow of highway construction project management based on thorough investigate, advanced the architecture of highway construction project management system based on workflow, and the function of each part of the system are provided. The link-procedure between different data-base is also designed. Eventually, the article...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.