To enhance imaging during the TEM a beam alignment really should be performed before use. A Resource for this alignment is a holey grid. A holey grid is really a TEM grid help coated with a skinny plastic movie along with a stabilizing carbon layer.Bên c?nh nh?ng ?u ?i?m nh? trên thì Decal nh?a trong có m?t h?n ch? khi?n cho nhi?u ng??i ph?i c�