electron microscope

electron-microscope的词性：
n.Abbr. EM（名词）缩写 EM

1. Any of a class of microscopes that use electrons rather than visible light to produce magnified images, especially of objects having dimensions smaller than the wavelengths of visible light, with linear magnification approaching or exceeding a million (10⁶).
电子显微镜：用电子而不是可见光来制作物体放大像的一种显微镜，尤其用于体积小于可见光波长的物体，直线放大倍数接近或超过一百万(10⁶)