To improve imaging from the TEM a beam alignment needs to be executed just before use. A tool for this alignment is often a holey grid. A holey grid is actually a TEM grid aid coated with a skinny plastic film and a stabilizing carbon layer.Cũng có doanh nghiệp lại lựa chọn chất liệu decal vỡ để in tem truy xuất nguồn gốc,