Khaws rau hauv qhov chaw txias, qhuav thiab zoo-ventilated tsev rau khoom.
Tseg deb ntawm hluav taws thiab cov khoom cua sov.
Zam kev tshav ntuj ncaj qha.
Cov ntim yuav tsum tau muab ntim thiab tiv thaiv los ntawm noo noo.
Nws yuav tsum tau muab cais cais los ntawm oxidants thiab alkalis, thiab zam kev sib xyaw.
Nruab nrog cov khoom tsim nyog ntau thiab ntau thiab ntau ntawm cov khoom siv hluav taws.
Thaj chaw cia yuav tsum tau nruab nrog cov ntaub ntawv tsim nyog los muaj cov to.
