About in tem nhãn decal
Projector lens-The ultimate lens inside a TEM. Used to help in magnifying the picture also to venture the magnified impression on to the phosphorus display.
Không b? ?nh h??ng b?i các tác ??ng c?a môi tr??ng, b?t k? ?i?u ki?n th?i ti?t có ?? ?m cao, l?nh hay nhi?t