Mahsulot tavsifi
The general understanding of local and centralized water supply, emphasizing its hygienic importance.
#dezinfeksiya#suv ta’minoti#gigiyenik ahamiyati#suv sifati
Muallif
Soliha MirzayevaTasdiqlangan muallif
- Hujjatlari
- 53
- Sotilgan
- 10
The general understanding of local and centralized water supply, emphasizing its hygienic importance.
