Ua ntej kev tsim kho PB yeeb nkab, qee qhov kev npaj ua haujlwm yuav tsum tau ua kom paub meej tias nws ua tau zoo. Yog li dab tsi kev npaj ua haujlwm yog muaj?
Nws yog ib qho tseem ceeb heev uas cov neeg ua haujlwm tsim kho yuav tsum paub txog cov duab kos, nkag siab lub hom phiaj ntawm daim phiaj, thiab sib txuas lus thiab daws teeb meem hauv lub sijhawm yog tias pom muaj teeb meem. Ua ntej pib ntawm ntau yam ua tiav prefabricated, nws yog qhov yuav tsum tau npaj cov khoom siv raws li cov qauv kev npaj tsim, thiab npaj cov khoom tsim nyog thiab khoom siv raws li cov kev qhia tshwj xeeb thiab qauv thiab thauj lawv mus rau qhov chaw. Tom qab ntawd, rau cov PB kav dej uas tuaj txog rau ntawm qhov chaw, koj yuav tsum ua tib zoo xyuas cov khoom siv, kos cov khoom lav, cov qauv, qauv, thiab lwm yam, thiab tom qab ntawd nkag mus rau hauv lub tsev rau khoom tom qab dhau txoj kev kuaj, thiab kos lawv nyias.
Thaum tuav thiab tsim PB cov yeeb nkab, kev saib xyuas yuav tsum tau coj los tiv thaiv nws kom tsis txhob muaj kev puas tsuaj rau cov tshuab los ntawm quab yuam sab nraud tsis raug. Qhov chaw ntawm cov yeeb nkab yuav tsum tau cim tom qab daim ntawv thov zais kom tsis txhob muaj kev puas tsuaj rau lub yeeb nkab thaum lub caij zaum ob.
