Thaum siv lub yob ntawv lub khob tuag txiav tshuab, nws yog ib qho tsim nyog los tswj txoj haujlwm ntawm lub vaj huam sib luag ua haujlwm, kom lub siab hloov thiab skew hloov ntawm lub tshuab txiav tuag muaj kev nyab xeeb thiab yooj yim rau kev khiav lag luam, thiab nws tuaj yeem hloov kho txhua lub sijhawm. thaum lub tshuab qhib.
Kev hloov pauv siab ntawm kev hloov pauv dav dav ntawm cov ntawv yob lub khob tuag-txiav tshuab txais cov kev hloov kho sab saud thiab cov kev hloov kho qis, uas yog kho cov ntawv sab sauv lossis sab qis ntawm daim ntawv. Feem ntau ntawm cov ntawv khob tuag-txiav tshuab Cov kev hloov kho sab saud yog siv, vim los ntawm kev pom kev, nws yog ib qho nyuaj rau ob-seater tuag-txiav kom siv qhov kev hloov kho qis kom khaws cov ntawv ntawm ib theem. Rau kev hloov kho ntawm skew ntawm lub rooj tsavxwm tuag, nws kuj tseem tuaj yeem siv txoj hauv kev ntawm kev hloov kho sab saud, uas muaj qhov laj thawj zoo ib yam. Cov neeg tsim khoom yuav tsum coj qhov tseem ceeb no rau hauv kev txiav txim siab thaum xaiv cov cav tov, tshwj xeeb tshaj yog cov cav tov nrog ob chav tuag txiav hauv paus.