Txom nyem pom cov hniav
Cov ntsej muag hauv tsev yog siv rau txiav pob zeb thiab ntoo nrog ntau impurities. Cov ntsej muag maus taus feem ntau yog cim los ntawm tus nqi qis thiab muaj ntau pom cov khoom ua cov hniav tuaj. Ua tsis tiav tsim cov saw hniav uas tuaj yeem koom nrog kev sib tw thoob ntiaj teb. Cov lag luam nyob hauv Suav teb kuj tseem yog hauv cov lag luam qis kawg. Tuam Tshoj' s pom hniav tshuab thiab cov tshuab thev naus laus zis tseem yuav tsum tau muab, thiab kev lag luam nruab nrab-rau-kawg tseem tseem ntshuam pom txha hniav tawg.
Cov khoom siv pom cov hniav
Cov khoom lag luam pom tuaj tshuab no yog feem ntau tuaj ntawm Tebchaws Europe thiab Nyij Pooj. Muaj ntau cov tuam txhab Japanese, tab sis ntau ntawm lawv kuj yog tsim hauv Suav teb. Thaum xaiv cov pom ntsej tuaj, koj yuav tsum them sai sai rau cov khoom ntshuam thawj thiab muab daim ntawv pov thawj tus nqi kiag.