Hluav taws xob saw hoistyog ib qho cuab yeej tseem ceeb rau kev tsa thiab txav cov khoom hnyav hauv ntau yam lag luam. Cov hoists no feem ntau siv rau ntawm cov chaw tsim kho, cov tsev rau khoom, thiab cov chaw tsim khoom kom yooj yim rau cov txheej txheem ntawm kev tsa thiab thauj cov khoom hnyav.
Lub hauv paus ntsiab lus ua haujlwm ntawm lub tshuab nqa hlau yog yooj yim thiab ua haujlwm tau zoo. Lawv muaj lub tshuab hluav taws xob uas tsav lub saw hlau uas txuas rau ntawm tus nuv lossis lwm yam khoom siv nqa. Thaum lub cev muaj zog pib, nws ua rau lub saw hlau txav mus los, nqa cov khoom thauj ntawm tus nuv. Qhov ceev thiab qhov tseeb ntawm cov txheej txheem nqa tuaj yeem tswj tau siv lub tshuab tswj hwm ntawm lub tshuab nqa hlau, ua rau tus neeg teb xov tooj tuaj yeem nqa thiab txo cov khoom thauj tau yooj yim.
Ib qho ntawm cov khoom tseem ceeb ntawm lub tshuab nqa saw yog lub saw nws tus kheej. Lub saw yog tsim los kom muaj zog thiab ruaj khov, tuaj yeem dais qhov hnyav ntawm cov khoom hnyav yam tsis tawg lossis ncab. Qhov no ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm lub tshuab nqa thaum lub sijhawm nqa. Tsis tas li ntawd, cov tshuab nqa saw tau nruab nrog cov yam ntxwv kev nyab xeeb xws li kev tiv thaiv kev thauj khoom ntau dhau los tiv thaiv kev raug mob thiab kev puas tsuaj rau lub tshuab nqa.
Cov cranes saw hlau muab kev daws teeb meem ntau yam thiab ua haujlwm tau zoo rau kev tsa thiab txav cov khoom hauv qhov chaw nqaim. Cov cranes no feem ntau siv rau hauv cov chaw ua haujlwm thiab cov kab ntau lawm los pab txhawb kev txav cov khoom siv thiab cov khoom siv.
Lub sijhawm tshaj tawm: Tsib Hlis-28-2024