electron microscope
noun [ C ] uk/iˌlek.trɒn ˈmaɪ.krə.skəʊp/ us/iˌlek.trɑːn ˈmaɪ.krə.skoʊp/
电子显微镜
a device that sends electrons through objects that are too small to be seen easily, to produce a picture that is more detailed than that produced by ordinary microscopes