Thaum txhim kho cov khoom siv dej phwj sib xyaw, tseem yuav tsum tau them nyiaj tshwj xeeb, tshwj xeeb tshaj yog rau qee cov neeg siv tshiab. Ntau tus neeg tau ua rau muaj teeb meem tsis tsim nyog vim kev tsim kho tsis raug. Yog li dab tsi yuav tsum tau them sai sai rau thaum tsim cov khoom siv dej phwj sib xyaw?
Cov teeb meem xav tau kev saib xyuas:
1. Qhov chaw uas cov cuab yeej raug teeb tsa yuav tsum tsis txhob muaj dej ntau
2. Lub qhov hluav taws xob cov yeeb nkab ntawm cov khoom siv dej phwj tuaj koom ua ke yuav tsum qis dua 0.4m txheeb ze rau hauv av
3. Yuav tsum tsis txhob muaj cov khoom hnyav lossis cov tsheb loj hla cov khoom siv
4. Nws raug nquahu kom ua qhov tsim nyog los tiv thaiv corrosion thiab ua tib zoo saib xyuas kom muaj kev ua haujlwm zoo ntawm cov khoom siv.
5. Nws raug pom zoo tias cov khoom siv dej phwj tuaj koom ua ke yuav tsum tsis txhob tso cov dej phwj tuaj sab hauv los tiv thaiv cov khoom hloov pauv.