方法对全市乡镇、村集中式供水设施进行全面调查，并进行系统分析。

Methods All tap water facilities at township or village level were investigated comprehensively.

youdao

方法对全市乡镇、村集中式供水设施进行全面调查，并进行系统分析。

Methods All tap water facilities at township or village level were investigated comprehensively.

youdao