Thaum txhim kho lub sensor hom ntxig, nws yog ib qho tsim nyog los vuam lub pob valve puag rau ntawm cov kav dej, txhim kho lub pob valve, thiab tom qab ntawd tho qhov ua ntej txhim kho lub sensor hom ntxig. Rau cov kav dej uas tsis tuaj yeem vuam ncaj qha, xws li cov uas ua los ntawm cov ntaub ntawv xws li cement, hlau ductile lossis lwm yam khoom siv uas tsis vuam tau, lossis thaum tho qhov yuav ua rau cov kav dej tawg yooj yim, nws yog ib qho yuav tsum tau txhim kho lub hoop sab nraud uas vuam tau (feem ntau yog ua los ntawm cov hlau carbon) ua ntej. Thaum txhim kho lub hoop sab nraud, yuav tsum tau them sai sai rau qhov kev sib khi ntawm cov kav dej thiab lub hoop sab nraud kom tiv thaiv dej hauv cov kav dej kom tsis txhob ntws tawm thaum lub sijhawm tho qhov.
Lub sijhawm tshaj tawm: Tsib Hlis-12-2025