Daim ntawv tso cai daim npav lees paub qhov chaw nres tsheb yog dav siv hauv chaw nres tsheb, thiab nws qhov kev lees paub tuaj yeem ncav cuag ntau dua 99%. Yog li ntawd, kev tswj tsis muaj neeg saib xyuas tuaj yeem pom tau rau qee lub tsheb ruaj khov nkag mus thiab tawm hauv qhov chaw nres tsheb. Nyob rau tib lub sijhawm, daim ntawv tso cai daim ntawv lees paub qhov chaw nres tsheb yuav siv qhov chaw nres tsheb siab-txhais. Kev paub txog kev sib koom ua ke ntawm lub tshuab tuaj yeem tsis tsuas yog paub txog daim ntawv tsav tsheb ntawm lub tsheb nkag thiab tawm, tab sis kuj tseem qhia txog cov cim hauv lub tsheb, cov duab thaij duab ntawm daim ntawv pov thawj, thiab kev lees paub ntawm hom tsheb, ua kom muaj kev nyab xeeb zoo. ntawm lub tsheb nkag mus thiab tawm ntawm qhov chaw nres tsheb.
