求翻译：文本选取J市为例，通过案例分析的方式，研究分析在实际操作过程中排水设施规划、建设和养护管理等部门间存在的合作困境。是什么意思？

The text selected j City, for example, by way of case studies, research and analysis cooperation difficulties between the drainage facilities planning, construction and maintenance management and other departments in the actual operation.

Text Selection J City, for example, through case studies, research and analysis in the actual operation drainage facilities planning, construction and maintenance sectors such as management of cooperation.

The text selects the J city is an example, through the case analysis way, the research analysis drains water the cooperation difficult position in the actual operation process which departments and so on between facility plan, construction and maintenance management exists.

Text select j, for example, by means of a case study, research and analysis in practice in the course of planning, construction and maintenance of drainage facilities management sectors cooperation existed between the predicament.

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