Nrog rau kev siv SMC cov ntaub ntawv ntau ntxiv, ntau thiab ntau tus neeg xav paub txog lawv. Lawv kuj tau siv dav hauv kev tsim cov manhole npog hauv peb lub neej txhua hnub. Koj puas tau pom nws daim ntawv thov hauv kev ua cov khoom zoo li no?
SMC khoom
Cov khoom siv SMC siv hauv manhole npog ntau lawm muaj kev ua haujlwm zoo los tiv thaiv tub sab, vim tias cov khoom siv rov ua dua tshiab tom qab kub sib tsoo thiab nias tsis yog tshwj xeeb, thiab nws tsis tuaj yeem muag ntawm tus nqi siab. Lawm, tsis muaj leej twg mob siab txog xws li manhole npog.
Lub neej ua haujlwm ntev yog qhov tseem ceeb rau kev xaiv SMC cov ntaub ntawv. Rau cov tub lag luam, siv lub sijhawm ntev txuag cov nqi peev, ua kom cov khoom nkag mus rau hauv cov iav fiber ntau thaum ua haujlwm, txhim kho kev sib raug zoo, thiab tsis ua rau muaj kev puas tsuaj sab hauv, yog li ua kom nws lub neej kev pab cuam.
Cov npog zoo yog siv sab nraum zoov, thiab lawv cov tsos kuj xav tau. Tom qab tag nrho, lawv kuj muaj cov teebmeem zoo nkauj. Qee qhov npog qhov dej uas peb pom sab nraum zoov yog pleev xim rau, thiab cov qauv sib txawv nyiam cov neeg tuaj yeem nres thiab saib. Yog tias cov npog zoo ua los ntawm cov khoom siv SMC kuj muaj cov qauv zoo, peb ntseeg tias lawv tuaj yeem tau txais kev lees paub ntau dua los ntawm tib neeg.
