?ây là m?t trong nh?ng ph??ng pháp in ?n hi?n ??i nh?t Hello?n nay. Công ngh? Offset tuy?t v?i ??n m?c cho ra thành ph?m ??p nh?t v?i chi phí r? nh?t.The cold finger reservoir has to be need to be stuffed with liquid nitrogen prior to the microscope is employed. Contaminants sometimes bring about a phenomenon called drift. Drift could be the