Samples are limited to the ones that are electron clear, able to tolerate the vacuum chamber and small enough to suit from the chamber C?u t?o c?a chúng bao g?m 2 ph?n riêng bi?t ph?n decal và ph?n d?. M?i ph?n l?i ???c chia ra làm 2 l?p: Ph?n decal có l?p m?t de