地氟病中、重病区的改水数量已超过半数，地砷病病区改水措施已发挥防病作用。

地氟病中、重病区的改水数量已超过半数，地砷病病区改水措施已发挥防病作用。的英文翻译

基本释义

• Over half of the water in the areas with medium and serious endemic fluorine disease has been improved. The water improvement measures in the areas with endemic arsenic disease have played roles in preventing the disease.