Project:Sandbox

may tinh ,He Dieu Hanh la do Suc Vat no gia lap. Cong trinh, du an , phat minh vi dai cua chung may cung deu do Suc vat no gia lap. Cung nhu stereo Ao' ma chung may tuong stereo nen deo nghe duoc stereo nua ma chi nghe 1 loa Stereo = mono thoi. goi la Gia lap. An me may cu't het di. khoi can binh luan gi nua