Nyob rau hauv daim teb ntawm cov khoom siv tshuaj pleev ib ce, cov iav fwj tau thawj zaug rau cov khoom siv sib txawv ntawm cov khoom lag luam sib txawv ntawm cov iav kom hniav zoo nkauj ntawm peb qhov ntev: khoom siv, lub hom phiaj thiab tsim .
Nyob rau hauv cov nqe lus ntawm cov ntaub ntawv, iav kom hniav zoo nkauj tuaj yeem muab faib ua peb pawg, borosilicate iav, borosilicate iav yog qhov tseem ceeb thiab kub thiab txias thiab muaj cov tshuaj muaj zog kev ruaj khov . nws feem ntau siv nyob rau hauv cov khoom lag luam uas muaj cov tshuaj lom neeg zoo thiab cov tshuaj tsw qab high .
Raws li lub hom phiaj, iav kom hniav kom zoo nkauj tuaj yeem faib ua cov tshuaj txau thiab cov tshuaj pleev cov taub hau teeb tshuaj tsuag {{4 4}}}}}}} {. Lawv cov roj ntsha txo tau tuaj yeem txo cov khoom lag luam thiab txhim kho cov neeg siv kev paub.
Nyob rau hauv cov nqe lus ntawm kev tsim qauv, iav kom hniav zoo nkauj tuaj yeem muab faib ua cov raj hluav taws xob thiab cov tshuaj tsw qab. zam rau lub teeb pom kev ntawm cov khoom xyaw rhiab. Nws yog qhov pom kev zoo nkauj {
Nrog cov tswv yim tiv thaiv ib puag ncig, lub zog iav ua kom zoo dua qub, muab cov kev daws teeb meem zoo tshaj plaws rau kev lag luam tshuaj pleev ib ce {}}
