前言：目的：摸清四川省农村改厕工作的现状，存在的主要问题。
Objective: to find out the situation and main problems of rebuilding sanitary toilets in rural areas of Sichuan province.
农村改厕的主要目的是预防、控制肠道传染病和寄生虫病的传播。
The main goal of the toilet modernization in rural areas is to prevent and control the propagation of the verminous and intestinal infectious affection.
目的探索以机代牛、改水改厕综合治理控制血吸虫病传播的效果。
Objective To learn the effect of the comprehensive measures of replacing cattle with machine and reconstructing water supply and lavatory to control the transmission of schistosomiasis.
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