1. Kev tsim khoom loj
Chav loj rau kev sib faib nyiaj: Peb muaj ntau cov kab ntau lawm, uas tuaj yeem ua kom haum rau ib txhij ntawm ntau qhov kev txiav txim.Kev tsim khoom loj tuaj yeem txo cov nqi tsim khoom thiab siv zog rau chav ntau dua rau kev sib faib nyiaj rau cov neeg siv.
2. Kev xav tau kev pab
Kev xav tau hauv zej zog kuj tuaj yeem piav qhia raws li kev sib raug zoo ntawm kev muab khoom thiab kev thov.Tus nqi ntawm ib yam khoom kuj yuav raug kho raws li qhov kev thov yuav khoom.Qhov ntawd yog hais tias, thaum cov khoom siv ntau tshaj qhov xav tau, kev xav tau ntawm kev sib raug zoo me me, thiab tus nqi yog ib txwm qis, thiab rov ua dua.
3. Muaj peev xwm siv tau
Yog hais tias lub nroog lub zog siv nyiaj ntau, cov nqi ntawm cov khoom feem ntau yuav siab dua.Thaum lub nroog lub zog siv nyiaj tsawg, tus nqi yuav qis dua li cov khoom zoo sib xws hauv cov nroog uas muaj kev noj ntau.
4. Zoo
Raws li cov lus hais mus, cov khoom pheej yig tsis zoo, thiab cov khoom zoo tsis pheej yig.Tus nqi ntawm cov cuab yeej zoo yog ib txwm me ntsis siab dua li cov khoom siv zoo tib yam.
5. Tus nqi
Qhov tseem ceeb tshaj plaws ntawm tus nqi yog tus nqi.Cov nqi suav nrog cov khoom siv raw, kev thauj mus los, kev ua haujlwm thiab lwm yam nqi raug suav tias yog cov nqi, yog li tus nqi siab dua ntawm cov khoom, tus nqi siab dua yuav ib txwm muaj.
Kev txiav txim los ntawm qhov teeb meem kev loj hlob tam sim no, daim ntawv thov kev lag luam ntawm chav boilers tau dhau los ua ntau dua, yog li lawv tseem yuav tau tsav los ntawm txhua qhov chaw ntawm lub neej.