Kuv yuav ua li cas yog tias kuv nkawm khau hnav qhov thiab rub kuv txhais taw

Baotou khau khiab feem ntau hu ua khau perforated, tseem hu ua khau khiab sab nraum zoov. Baotou khau khiab tsim los ntawm cov tuam txhab raug cai yog ua los ntawm cov khoom siv zoo nkauj thiab noj qab nyob zoo. Tom qab muab tso rau, lawv yuav cia li kho kom haum rau cov duab ntawm ko taw. Yog tias muaj ko taw puas, cov hauv qab no tuaj yeem siv los daws nws:
1. Tej teeb meem ntawm tus kheej ua rau ko taw puas
Ua ntej hnav cov khau perforated, nws raug nquahu kom siv cov pab pawg lossis cov tshuaj tiv thaiv tshwj xeeb los tiv thaiv ko taw hauv thaj chaw uas cov ko taw tau yooj yim hnav, lossis hnav ib nkawm thom khwm ua ntej hnav khau perforated.

2. Kev sib tsoo tshwm sim los ntawm cov teeb meem khau loj
Yog li nws raug pom zoo kom hu rau cov tub lag luam kom rov qab los yog pauv qhov loj me ntawm cov khau perforated, tom qab tag nrho, cov khau perforated uas loj dhau los yog me me tuaj yeem hnav tau yooj yim. Tsuas yog hloov lawv nrog ib khub haum.
Nco ntsoov: Thaum hnav cov khau perforated, nws yog ib txwm xav tias hnav me ntsis thaum pib, tab sis nws feem ntau daws tau tom qab hnav ib ntus; Txhawm rau tiv thaiv cov khau nrog qhov los ntawm rub koj txhais taw, koj yuav tsum xaiv cov khau loj uas haum rau koj ko taw loj thiab ceev faj tsis txhob taug kev ntev nrog lawv.