Solvent rov qab tshuab ua haujlwm nyab xeeb 5 txoj cai
Nruab cov kiv cua tawg, tawg-pov thawj keyboards, tawg-pov thawj teeb thiab lwm yam khoom siv tawg-pov thawj hauv thaj chaw ua haujlwm
2. Qhov chaw ua haujlwm yog qhov cua thiab ua pa, thiab nws yog txwv tsis pub khaws cov khoom tawg ntau
3 Tsis txhob raug tshav ntuj los tiv thaiv kev tsim cov tshuaj lom decomposition, xws li phosgene
4. Nws yog txwv tsis pub qhib qhov tawg-pov thawj hluav taws xob tswj qhov system.
5 Ua kom muaj hluav taws xob hluav taws xob tiv thaiv hluav taws xob
