Qhov zaus ntawm cov pa roj carbon txhuam hloov tsis tau teev tseg. Raws li qhov hardness ntawm carbon txhuam nws tus kheej
1, rwb thaiv tsev ntawv daim kab xev nyob rau hauv thawj rwb thaiv tsev ntawv ntawm qhov chaw ntawm txiav nws mus rau hauv ntau yam dav
Lub commutator yog ib feem tseem ceeb ntawm dc lub cev muaj zog thiab AC commutator armature.
Feem ntau cov teeb meem yog tsim los ntawm cov molecules uas yog tsim los ntawm atoms uas nyob rau hauv lem yog ua los ntawm nuclei thiab electrons. Hauv ib qho atom
Yog lawm, peb tuaj yeem ua tau. Peb kuj tuaj yeem yog koj qhov chaw muag khoom hauv Suav teb, pab koj tswj hwm koj cov neeg muag khoom.
Peb lub caij nplooj ntoos hlav Festiva xyoo 2022 pib txij Lub Ib Hlis 28 thiab xaus rau Lub Ob Hlis 8, tab sis zoo siab tos txais los tham nrog peb txhua lub sijhawm thaum peb hnub so.