1: Cov khoom lag luam siab kawg uas peb lub Hoobkas tsim txhua tus txais yuav F-seal tsim.
Tam sim no peb yog ib qho ntawm ob peb lub Hoobkas hauv Suav teb uas tau txais cov qauv tsim zoo li no.
Hom foob no tuaj yeem tiv thaiv cov hmoov av kom tsis txhob nkag mus rau hauv cov khoom.
2: Tag nrho peb cov khoom siv cov tsev thaiv hnyav heev. Thiab peb cov thev naus laus zis tam sim no tuaj yeem ua kom ntseeg tau
tias cov channel ntawm txhua lub tsev thaiv tau phim tag nrho nrog UC bearing, xyuas kom meej
tias txhua yam khoom tuaj yeem nkag mus rau hauv cov kabmob tau yooj yim thaum cov roj raug txhaj rau hauv cov khoom
thaum lub sijhawm siv tom qab thiab kev saib xyuas. Nws yuav tsis xau ntawm lub tsev thaiv thiab UC bearing.