Xov Xwm Tuam Txhab
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Online-chlorination System
Ib qho "online-chlorinated sodium hypochlorite dosing system," nws feem ntau yog hais txog cov tshuab siv tshuaj tua kab mob lossis tshuaj chlorination hauv ntau hom kev lag luam, xws li cov chaw kho dej, cov chaw kho dej khib nyiab, lossis cov pas dej da dej. Dosing system feem ntau cons ...Nyeem ntxiv -
Kev tiv thaiv khaus laus nas vais lav
Raws li cov ntaub ntawv tseeb ntawm lub sijhawm tiag tiag los ntawm Lub Koom Haum Saib Xyuas Kev Noj Qab Haus Huv Ntiaj Teb thaum Lub Kaum Ib Hlis 5, 2020, 47 lab tus neeg mob tshiab mob ntsws tau raug kuaj pom thoob ntiaj teb, nrog rau 1.2 lab tus neeg tuag. Txij lub Tsib Hlis 7, txhua lub nroog hauv Suav teb tau hloov kho kom muaj kev pheej hmoo tsawg thiab "zero" hauv high- thiab nruab nrab-ri ...Nyeem ntxiv