Lub tshuab vuam no yog cov khoom siv vuam tsis siv neeg uas muaj qhov tseeb thiab hnyav uas tsim tshwj xeeb los txhim kho kev vuam zoo thiab xyuas kom meej tias qhov vuam zoo ib yam.
Siv lub tshuab servo tsav tsheb siab heev thiab cov qauv iav kis tau zoo, lub tshuab muaj kev ua haujlwm ruaj khov, qhov chaw raug siab thiab muaj peev xwm thauj khoom tau zoo, uas ua tau raws li qhov xav tau vuam ntawm cov yeeb nkab, flange, lub tog raj kheej thiab ntau yam khoom siv tig.
Txhua lub hauv paus tseem ceeb raug xaiv thiab ua tiav nrog cov txheej txheem tsim khoom txheem, txo cov qhov tsis zoo ntawm kev vuam, txhim kho cov khoom ua haujlwm thiab txo qhov nyuaj ntawm kev ua haujlwm tes.