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1.The river system survey is crucial for understanding the ecological impact of urban development.
河流系统调查对于理解城市发展对生态的影响至关重要。
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2.The government has launched a river system survey to identify and address pollution issues in the region.
政府已经启动了一项河流系统调查，以识别并解决该地区的污染问题。
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3. The survey results will be used to develop sustainable water management strategies for the region.
调查结果将被用于为该地区制定可持续的水管理战略。