Cov xov hlau concentric yog ib hom xov hlau uas feem ntau siv rau hauv cov ntawv thov hluav taws xob tsawg. Nws muaj ib lub xov hlau hauv nruab nrab uas muaj ib lossis ntau txheej rwb thaiv tsev nyob ib puag ncig, nrog rau ib txheej sab nraud ntawm cov xov hlau concentric. Cov xov hlau concentric feem ntau yog ua los ntawm tooj liab lossis txhuas thiab ua haujlwm ua tus xov hlau nruab nrab rau lub xov hlau.
Cov xov hlau concentric feem ntau siv rau hauv cov ntawv thov uas xav tau lub zog hluav taws xob tsawg, xws li hauv cov tsev nyob thiab cov tsev lag luam. Lawv kuj tseem siv rau hauv kev lag luam sib txuas lus rau kev txuas xov tooj thiab internet.
Muaj ntau hom xov hlau concentric muaj, suav nrog cov uas muaj PVC lossis XLPE rwb thaiv tsev. Kev xaiv cov khoom siv rwb thaiv tsev nyob ntawm daim ntawv thov tshwj xeeb thiab cov khoom siv hluav taws xob thiab tshuab uas xav tau.
Thaum xaiv cov xov hlau concentric, yuav tsum xav txog cov yam xws li qhov ntsuas hluav taws xob, lub peev xwm nqa tam sim no, cov khoom siv rwb thaiv tsev, qhov loj me thiab hom xov hlau, thiab lub peev xwm ntawm cov xov hlau los tiv taus cov yam ntxwv ib puag ncig. Kev teeb tsa thiab kev saib xyuas kom zoo ntawm cov xov hlau concentric yog qhov tseem ceeb hauv kev ua kom lawv muaj kev nyab xeeb thiab txhim khu kev qha.
Lub sijhawm tshaj tawm: Lub Xya Hli-21-2023