Notable differences are existed between system service and unit service in urban water affairs operative services and type of property it encounters varies.
城市水务运营服务的系统服务和单元服务存在着显著的区别，其对应的产权形式也各不相同。
Notable differences are existed between system service and unit service in urban water affairs operative services and type of property it encounters varies.
城市水务运营服务的系统服务和单元服务存在着显著的区别，其对应的产权形式也各不相同。
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