In tem seven m?u ch?ng gi? bút máy ánh d??ng thi?t k? m?u theo yêu c?u Tem Decal b? c?a B? Công AnShroud-The soft iron casing encompassing the electromagnetic lenses on the TEM. Solenoid-An electromagnetic lens fashioned by copper windings having a immediate present managing through it.The pictures make it possible for scientists to look at sa