Feem ntau hais lus, nyob rau hauv cov txheej txheem ntau lawm ntawm Tieyi lub rooj vag, cov tuam ntxhab tau xav txog cov yam ntxwv ntawm ib puag ncig sab nraum zoov, thiab siv zog ua tiav kev tiv thaiv xeb, hnav tsis kam, tiv thaiv corrosion thiab tiv tshav tiv tshav hauv kev xaiv ntawm cov khoom siv thiab txheej txheej. Yog li, cov neeg siv tsuas yog yuav tsum txheeb xyuas cov paub lag luam zoo thaum mus yuav Tieyi cov chaw, xws li winga pawg. Don' t yuav tsum ntshaw kom pheej yig, tsuas yog yuav qee qhov chaw tsim nyog hlau tsis muaj qhov tsis zoo. Txhawm rau ua kom ntev lub neej ntawm kev pab cuam sab nraum zoov hlau kos duab chaw, cov ntsiab lus hauv qab no kuj yuav tsum tau ua tiav:
Cov hmoov av yuav tsum tau muab tshem tawm kom tsis tu ncua. Cov plua plav tawm sab nraud, tsim sijhawm dhau los, cov tuam tsev hlau yuav poob rau ntawm txheej txheej ntawm cov plua plav ya. Nws yuav cuam tshuam cov xim ntawm hlau kos duab, thiab tom qab ntawd ua rau kev puas tsuaj ntawm hlau kos duab tiv thaiv zaj duab xis. Yog li no, cov chaw siv hlau sab nraum zoov yuav tsum tau muab so txhua lub sijhawm. Feem ntau, nws zoo dua los so cov ntaub mos muag.
Ua tib zoo saib cov ntawv pov thawj damp. Yog tias nws' s tsuas yog siv cov huab cua sab nraum zoov huab cua, koj tuaj yeem so tau txais kev xeb ntawm Tieyi cov chaw. Thaum muaj huab faus hnyav, daim ntaub paj rwb qhuav yuav tsum siv cov ntaub so dej ntawm cov hlau; Yog tias muaj hnub los nag, dej tso tawm yuav tsum tau muab so kom qhuav hauv lub sijhawm tom qab los nag. Xyoo tsis ntev los no, kua dej nag tau muaj ntau nyob rau ntau qhov chaw ntawm peb lub teb chaws, yog li nws yuav tsum tau so qhov dej nag hauv cov hlau daim duab tam sim ntawd tom qab los nag.
