Peb txhua tus paub hais tias qhov me me yog qhov, ntau dua qhov uas yuav tsum tau ua qhov tseeb, thiab qhov no zoo tshaj plaws ntawm qhov kev ua haujlwm ua peb tseem hu nws ua qhov kev txiav txim siab qhov kev ua, vim nws txoj kev cai yuav tsum muaj, kev ua haujlwm thiab cov kev cai ntawm cov kev cai yuav tsum yog siab heev, thiab cov khoom siv tsis muaj peev xwm siv lub zog muaj zog ntawm cov khoom, cov khoom siv no yuav ua rau qhov nyuaj ntawm kev ua, yog tias qhov nyuaj ntawm kev ua tshuab dhau, thiab tej zaum yuav ua puas tshuab. Li ntawd, dab tsi yog qhov uas yuav tsum tau ua rau kev ua tiav ntawm qhov ua tiav? Cov Xiao Bian hauv qab no yuav qhia nws rau txhua leej txhua tus ib tug.
Muaj ntau hom khoom siv hauv kev ua haujlwm, tab sis peb tuaj yeem faib lawv li hlau thiab cov khoom siv hlau. Lub siab tawv tshaj plaws ntawm hlau yog hlau tsis ntxau, taug kev los ntawm hlau, tooj liab dua, thiab thaum kawg txhuas. Ntawm cov ntaub ntawv uas tsis yog xim hlau, cov khoom siv tais diav thiab cov hnab yas yog cov sawv cev tshwj xeeb.
1. Ua ntej tshaj plaws, raws li qhov nyuaj ntawm cov ntaub ntawv yog kev txhawj xeeb, nyob rau hauv ib co kev siv, ntawm chav kawm, siab dua qhov nyuaj, qhov zoo dua. Txawm li cas los xij, vim hais tias kev siv lub tshuab ua haujlwm muaj qee yam, cov khoom siv yuav tsum tsis txhob nyuaj, tsawg kawg yog tsis. Yog tias nws siab tshaj qhov nyuaj ntawm lub cuab yeej tshuab, yog tias nws siab tshaj qhov nyuaj ntawm lub tshuab twj, nws yuav tsum tsis yooj yim sua kom tshuab.
2. Qhov thib ob, tsis yog qhov nyuaj thiab qhov nyuaj ntawm cov khoom yuav tsum muaj ntsis, tab sis nws kuj yuav tsum yog tsawg kawg yog ib qib qis dua qhov nyuaj ntawm cov khoom, thiab qhov kev cuam tshuam ntawm cov khoom ua haujlwm yuav tsum raug tshuaj xyuas ua ntej qhov tsim nyog xaiv ntawm cov yam. Tsuas yog nyob rau hauv txoj kev no peb yuav lav tias cov khoom tsim yog cov feem ntau raws thiab feem ntau economical.
Tag nrho hauv txhua qhov, xaiv cov ntaub ntawv siv rau hauv kev ua tiav cov lus tshaj yuav tsum muaj qee qhov kev txwv. Tsis yog txhua yam ntaub ntawv tsim rau kev ua haujlwm. Cov ntaub ntawv uas dhau los mos los yog ib qho nyuaj heev tsis tau. Yog li, feem ntau, cov ntaub ntawv yuav tsum tau ua tib zoo txiav txim ua ntej kev ua tiav. Them sai sai rau lub hardness ntawm cov khoom. Cov khoom siv nrog lub siab kub hnyav yuav tsis zoo rau qhov chaw, tab sis kuj yuav ua rau muaj kev raug mob xws li txoj siav ntawm lub cuab tam.