In addition, water samples from the public water supply sources are being collected and tested routinely to ensure they meet potable water safety standards.

 
  • 此外,正在定期收集和化驗公用水供應源的水樣,以便確保達到適合飲用的水安全標準。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan