Hexagonal Boron Nitride: Qalab yaab leh oo kala duwan
Dhinaca agabka horumarsan, cilmi-baarayaashu waxay si joogto ah u sahamiyaan xuduudo cusub iyagoo raadinaya walxo leh astaamo gaar ah oo wax ka beddeli kara warshado kala duwan. Mid ka mid ah sida ext...