The generalization of the toilet in rural areas of Dianchi lake basin can prevent environmental pollution and the spread of contagious disease effectively.

 
  • 在滇池沿湖推广生态卫厕将有效预防污染,并使传染性疾病和寄生虫病的传播得到有效控制。
今日热词
目录 附录 查词历史