IN TEM GIá Rẻ CAN BE FUN FOR ANYONE

A heated tungsten filament from the electron gun makes electrons that get focus on the specimen with the condenser lenses.A differential pumping aperture is utilized to independent the gun chamber, pumped through the ion pump, from the remainder of the column to be able to protect the electron gun from degrading.Từ ngã tư Phú Nhuận Đi qua H