... 共晶体 eutectic 农村改厕 improvement of latrine in countryside 二重积分 double integration ...
基于6个网页-相关网页
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.
目的了解济南地区农村改厕对蝇类种群密度的影响，评价农村改厕的卫生效果。
Objective To know the toilet reforms influence to the flies species density in the countryside of Jinan, evaluating the sanitary result of toilet reform of countryside.
应用推荐