1. Cov yam ntxwv tseem ceeb: ob-cov khoom ua kua nplaum, uas yuav tsum tau muab sib xyaw nrog AB, muaj zog versatility thiab tuaj yeem sau qhov khoob loj.
2. Kev ua haujlwm ib puag ncig: kho ntawm chav tsev kub, ob qho tib si sab hauv tsev thiab sab nraum zoov, tuaj yeem sib xyaw ua ke lossis siv cov cuab yeej tshwj xeeb rau AB kua nplaum (xws li AB kua nplaum phom
3. Qhov ntsuas kub siv tau yog feem ntau ntawm -50 thiab ntxiv rau 150 degrees
4. Haum rau ib puag ncig, dej tsis qab, roj tsis kam, muaj zog acid thiab alkali tsis kam
5. Khaws rau hauv qhov chaw txias kom deb ntawm tshav ntuj ncaj qha, nrog lub txee lub neej ntawm 12 lub hlis
