Nyiaj siv ua haujlwm cranes yog lub tshuab tseem ceeb hauv ntau qhov kev lag luam, suav nrog kev lag luam ntawv zeb.Cov ntawv mills xav tau kev nqa thiab txav ntawm cov khoom hnyav thoob plaws hauv cov txheej txheem tsim khoom, los ntawm cov khoom siv raw mus rau cov khoom tiav.SEVEN nyiaj siv ua haujlwm crane muab cov kev daws teeb meem zoo tshaj plaws rau cov ntawv zeb.
Ua ntej,nyiaj siv ua haujlwm cranesmuab kev ruaj ntseg zoo dua qub, uas yog qhov tseem ceeb tshaj plaws hauv txhua qhov chaw tsim khoom.Cov cranes no yog tsim los nqa thiab thauj cov khoom hnyav, kom ntseeg tau tias cov khoom nqa tau zoo thiab ruaj ntseg.Tsis tas li ntawd, overhead cranes tuaj yeem nqa cov khoom loj uas yuav nyuaj lossis tsis yooj yim rau tib neeg nqa, txo qhov kev pheej hmoo ntawm kev raug mob rau cov neeg ua haujlwm.
Thib ob, nyiaj siv ua haujlwm cranes yog qhov kho tau zoo heev, uas ua rau lawv zoo tagnrho rau siv hauv cov ntawv zeb.Lub crane tsim tuaj yeem tsim tau yooj yim kom tau raws li cov kev xav tau ntawm kev lag luam, suav nrog kev tuav cov khoom hnyav lossis cov khoom ntim siab.Cov yam ntxwv no ua kom cov ntawv zeb tuaj yeem yooj yim sib koom ua ke nyiaj siv ua haujlwm cranes rau hauv lawv cov txheej txheem tsim khoom, ua kom muaj txiaj ntsig tag nrho.
Thib peb, nyiaj siv ua haujlwm cranes tso cai rau cov neeg ua haujlwm cog cov khoom siv tau zoo thiab nrawm, ua kom muaj peev xwm ntau lawm.Cov cranes no tuaj yeem nqa, txav los yog ua haujlwm hnyav lossis hnyav hnyav hauv qhov tsis sib xws thiab ua haujlwm tau zoo, nrog rau kev cuam tshuam tsawg kawg rau kev tsim khoom.Qhov kev ua tau zoo no ua rau muaj txiaj ntsig zoo hauv kev lag luam ntawv zeb, tso cai rau ntau daim ntawv cov khoom tsim tawm hauv lub sijhawm luv.
Thaum kawg,nyiaj siv ua haujlwm cranesyog cov tshuab ua haujlwm ruaj khov thiab ruaj khov.Lawv tuaj yeem tiv taus qhov chaw ua haujlwm nyuaj thiab tuaj yeem siv los nqa thiab thauj khoom hnyav ntau tons.Cov cranes tseem tuaj yeem ua haujlwm tsis tu ncua yam tsis muaj cua sov lossis tawg - qhov tseem ceeb hauv kev lag luam ntxhib thiab tumble daim ntawv zeb.
