6.Lwm yam kev ua haujlwm tsis zoo
Sib tsoo, yws, rumbling, nyem, lossis tsuas yog lub suab nrov feem ntau txhais tau tias muaj qee yam teeb meem. Tshwj xeeb, yog tias koj hnov kev sib tsoo, khawb, lossis nws khiav ntxhib, uas feem ntau taw qhia rau hnyav hnyav thiab tsim kua muag sab hauv.
Nyob rau hauv cov xwm txheej zoo li no, tus kws tshaj lij yuav tsum tau sib cais lub twj tso kua mis, xyuas nws, thiab ua txhua yam kev kho uas xav tau. Cov khoom uas hnav tsis zoo tuaj yeem hloov pauv, thiab qee zaum lawv tuaj yeem siv lub tshuab ua kom lawv rov qab muaj sia.
7.Yog suab ib leeg txaus los daws teeb meem
Cov teeb meem suab nrov tsuas yog ib qho qhia tias yuav muaj teeb meem nrog cov khoom siv hydraulic. Muaj lwm txoj hauv kev daws teeb meem tseem ceeb txhawm rau txheeb xyuas qhov tshwm sim ntawm lub twj tso kua mis, xws li kuaj xyuas qhov kub, siab, thiab cov teeb meem ntws.
Koj tsis tuaj yeem kuaj xyuas cov teeb meem ntawm lub tshuab tsuas yog los ntawm lub suab, tab sis kev saib xyuas lub suab nrov tuaj yeem pab tau zoo heev. Nws tuaj yeem pab ntes cov teeb meem thaum ntxov, ua ntej lawv ua rau muaj kev puas tsuaj kim lossis kev poob qis nrog cov khoom siv hydraulic.
