Feem ntau, peb hu cov kav dej uas vuam ntiv tes nrog lub cheeb sab nraud loj dua 500 hli lossis ntau dua li cov kav hlau loj uas muaj kab ncaj. Cov kav hlau loj uas muaj kab ncaj yog qhov kev xaiv zoo tshaj plaws rau cov haujlwm kav dej loj, cov haujlwm xa dej thiab roj, thiab kev tsim kho cov kav dej hauv nroog. Hauv lwm lo lus, cov kav hlau loj uas muaj kab ncaj muaj qhov loj dua thiab qhov txwv me dua (qhov siab tshaj plaws tam sim no ntawm cov kav hlau tsis sib xyaw yog 1020 hli, qhov siab tshaj plaws ntawm cov kav hlau ob chav vuam tuaj yeem ncav cuag 2020 hli, thiab qhov siab tshaj plaws ntawm cov kav hlau ib leeg vuam tuaj yeem ncav cuag 1420 hli), cov txheej txheem yooj yim thiab tus nqi qis. thiab lwm yam zoo tau siv dav.
Cov kav hlau uas muaj ob sab uas muab tso rau hauv qab dej arc welded ncaj nraim kuj yog cov kav hlau uas muab tso rau hauv qab dej arc welded ncaj nraim. Cov kav hlau uas muab tso rau hauv qab dej arc welded ncaj nraim siv cov txheej txheem JCOE txias, cov hlau uas muab tso rau hauv qab dej arc welded siv cov hlau vuam, thiab cov hlau uas muab tso rau hauv qab dej arc welding siv cov khoom me me uas ntws los ntawm cov khoom me me. Cov txheej txheem tseem ceeb ntawm cov kav hlau uas muab tso rau hauv qab dej arc welded ncaj nraim yog qhov yooj ywm heev, thiab nws tuaj yeem tsim tau txhua yam kev qhia tshwj xeeb, uas feem ntau ua tau raws li cov kev cai thoob ntiaj teb rau qhov loj ntawm cov kav hlau, thaum cov qauv tsim khoom hauv tsev feem ntau siv cov kav hlau uas muab tso rau hauv qab dej arc siab.
Nrog rau kev txhim kho ntawm lub teb chaws kev lag luam, qhov kev xav tau hluav taws xob tau nce siab heev. Hauv kaum xyoo tom ntej lossis txawm tias kaum xyoo tom ntej, nws yog qhov tseem ceeb heev uas yuav tsum tsim cov thev naus laus zis thiab tsim kho qhov project.
Lub sijhawm tshaj tawm: Lub Peb Hlis-22-2023
