Yuav ua li cas nrog cov iav hlau thav duab tig ntsuab?

1. Yog tias cov iav hlau hlau tig ntsuab, koj tuaj yeem nqa mus rau tom khw muag khoom. Kev pab cuam tom qab muag feem ntau yog dawb. Nws raug pom zoo kom ntxuav nws tsis tu ncua thiab ua tib zoo saib xyuas cov tsom iav.
2. Muab ib lub paj rwb swab rau hauv ib qho uas tsim nyog ntawm dawb vinegar, thiab maj mam so lub patina nyob rau hauv tag nrho cov lus qhia. Nws yog feem ntau yooj yim los so. Yog tias nws tsis poob, tsuas yog so ob peb zaug ntxiv. Tom qab so nws huv, yaug lub thav duab dua nrog dej huv.
3. Koj tuaj yeem npaj lub tshuab ntxhua khaub ncaws ultrasonic hauv tsev, uas yuav ua rau cov iav ntxuav kom yooj yim dua.