Kev tsom xam ntawm cov teeb meem tsis muaj zog ntawm excavators

1. Lub cav hluav taws xob tau txaus thiab nws ua haujlwm tau ib txwm muaj, tab sis cov excavator ua haujlwm qeeb thiab tau tsis muaj zog khawb zog {}}

2. Cov twj siv tshuab ntawm excavators feem ntau yog cov ntaub ntawv ntawm ntau lub sijhawm, ua rau muaj ntau yam dej ntws tawm, ua rau muaj kev sib txuas lus hauv ntau lub sijhawm siab . Yog li no, kev ua haujlwm qeeb thiab kho cov teeb meem ntawm cov teeb meem cov teeb meem, lossis kho cov teeb meem ntawm txhua lub voj voog (siab, muaj hwj chim thiab cov hloov pauv, thiab lwm yam.) .

3. Ib qho tseem ceeb ntawm cov ntoo hluav taws xob, nws yuav ua rau lub valvator tsis rov qab rau nws txoj haujlwm qub tag nrho thiab cov thim rov qab tsis yog qhov chaw nres tsheb sib tw, muaj ntau qhov kev faib tawm thiab kev sib tw ntawm lub valve thiab lub valve yuav tsum tshem tawm .