- 29
- Nov
Lub tshuab hluav taws xob puas tuaj yeem muab tso rau hauv lub fume hood?
Tau lub muffle rauv muab tso rau hauv fume hood?
Nws tuaj yeem muab tso tau, tab sis ua tib zoo saib rau lub ntsuas cua kom nyob deb ntawm lub qhov cub muffle kom tsis txhob muaj cua sov los hlawv cov khoom hluav taws xob.