Nyob rau hauv nthwv dej ntawm kev ua lag luam thoob ntiaj teb, cov khoom siv lag luam lag luam tshiab rau cov chaw ua lag luam tawm txawv teb chaws rau lawv cov cim tshwj xeeb {}}
Raws li lub npe pom zoo, tshem tawm cov txee racks yog ib hom kev tsim qauv ntawm cov tuam txhab ua lag luam tawm tshiab txheej txheem kom tau raws li cov kev xav tau ntawm cov lag luam lag luam .
Nyob rau hauv cov nqe lus ntawm cov khoom xaiv, tshem tawm cov txheej txheem racks feem ntau siv cov khoom siv ruaj khov rau txhua lub sijhawm, nws cov khoom siv ruaj khov rau txhua lub sijhawm thiab ua kom muaj kev nyab xeeb rau ib puag ncig thiab kom muaj kev nyab xeeb ntawm khoom .
Ntawm qib kev ua haujlwm, qhov zoo ntawm cov txheej txheem racking yog qhov ua kom tau cov khoom siv dag zog ntxiv kom sai thiab ua kom tau yooj yim rau cov khoom siv khib nyiab sai dua yog tseem muaj yooj yim los ntxuav thiab tswj, uas tuaj yeem khaws cov tsev rau khoom huv thiab txiav txim siab .
Nrog kev txhim kho kev lag luam txuas ntxiv thiab kev tsim kho ntawm cov khoom lag luam txawv teb chaws, tab sis kuj tseem tuaj yeem ua tus qauv kev lag luam txawv teb chaws sawv tawm hauv cov kev sib tw thoob ntiaj teb {{2 2}}
