To enhance imaging from the TEM a beam alignment need to be executed just before use. A Resource for this alignment is usually a holey grid. A holey grid is usually a TEM grid assistance coated with a skinny plastic film in addition to a stabilizing carbon layer.C?ng có doanh nghi?p l?i l?a ch?n ch?t li?u decal v? ?? in tem truy xu?t ngu?n g?c, v�